466 . Three partners shared the profit in a business in the ratio 5 : 7 : 8 . They had partnered for 14 months, 8 months and 7 moths respectively . What was the ratio of their investments ?

A. 5 : 7 : 8
B. 20 : 49 : 64
C. 38 : 28 : 21
D. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

Let their investments be Tk. x for 14 months, Tk. y for 8 months and Tk. z for 7 months respectively.
Then, 14x : 8y : 7z = 5 : 7 : 8.
Now,
14x/8y = 5/7
⇒98x = 40y
⇒y = 49x/20
And, 14x/7z = 5/8
⇒112x = 35z
⇒z = 112x/35 = 16x/5
So x:y:z = x:49x/20:16x/5
(Multiply by 20)
⇒20:49:64

অফিসার (ক্যাশ ) - Sonali | Rupali | BD Krishi | Rajshahi Krishi Unnayn | Investment Corporation Of Bangladesh - ২৯. ০৩.২০১৯

A. The program provides uninteresting work
B. It is difficult to find work for all the program's graduates
C. The number of 17 and 18 year old youths has increased over the past three year
D. Unemployment benefits are known while future salaries are not
E. Youths are unaware of the program's benefits

View Answer	Favorite Question

Answer: Option C

Explanation:

To determine the option that does not weaken the argument, we need to identify the option that does not provide a potential reason for over one hundred thousand 17 and 18-year-olds to still sign on for unemployment benefits despite the government introducing the Youth Training Program. Let's analyze the options provided:

A. The program provides uninteresting work.
This option weakens the argument by suggesting that the Youth Training Program may not offer engaging or fulfilling work, which could discourage teenagers from participating and lead them to opt for unemployment benefits instead.

B. It is difficult to find work for all the program's graduates.
This option weakens the argument by indicating that the program may not have enough job opportunities to accommodate all its graduates. If the graduates struggle to find work, they may end up signing on for unemployment benefits.

C. The number of 17 and 18-year-old youths has increased over the past three years.
This option does not weaken the argument. If the number of 17 and 18-year-olds has increased, it could contribute to the high number of teenagers signing on for unemployment benefits, as the program may not be able to accommodate all the new participants.

D. Unemployment benefits are known while future salaries are not.
This option weakens the argument by suggesting that teenagers may prefer the immediate certainty of unemployment benefits over the uncertainty of future salaries that they may receive through the Youth Training Program.

E. Youths are unaware of the program's benefits.
This option weakens the argument by suggesting that teenagers may not be aware of the benefits offered by the Youth Training Program. Their lack of awareness could lead them to choose unemployment benefits instead.

Based on the analysis, option C is the one that does not weaken the argument. The increase in the number of 17 and 18-year-olds over the past three years can be a contributing factor to the high number of teenagers signing on for unemployment benefits, regardless of the introduction of the Youth Training Program.

Bangladesh Bank - Assistant Director - 2011

A. 4 PM same day
B. 2 PM same day
C. 6 PM same day
D. 1 PM same day
E. None of them

View Answer	Favorite Question

Answer: Option A

Explanation:

For rate - time - distance questions, try to reduce the question to as few unknown quantities as possible. Instead of a separate r, t, and d for each train, look for commonalities:
Both trains travel the same distance, so there's only one "d"
We don't know the time, but we know that Train Y took less time, since it left an hour and half later. So if Train X took t hours to travel some distance, Train Y only took (t - 1.5) hours.
The rates aren't given, but we know that train Y was 4/3 the rate of train X.
Let's set it up. Since rate*time = distance and the distances are equal, we can set Train X's rate * time equal to Train Y's rate * time
xt = 43x(t−1.5)xt = 43x(t−1.5)
Working through the problem, we get
xt = 43xt−4/3∗1.5xt = 43xt−4/3∗1.5 here it can be helpful to recognize that 1.5 is just 3232, and cancel out the 3's: 43∗32 = 243∗32 = 2
xt = 43xt−2xt = 43xt−2
Subtract xt from both sides, and add 2 to both sides, and we get: 2 = 13t2 = (1/3)t
6 = t
So, adding 6 hours to Train X's starting time, we get 4:00 pm as the time that train Y will catch train X.

Bangladesh Bank - Assistant Director - 2012

A. 50°
B. 85°
C. 90°
D. 95°
E. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

470 . Two banks offer interest rates of 6% & 7% respectively on savings account. Mr. X deposited a total amount of Tk.4000 in the bank and in one year his interest income was Tk.250. Find the investment in the bank with 7% interest?

A. 3500
B. 2500
C. 8000
D. 2000
E. None of them

View Answer	Favorite Question

Answer: Option E

Explanation:

471 . Two circles of equal radii touch externally at a point P . Form a point T on the target at P target TQ and TR are drawn to the circles with points of contact Q and R respectively. The relations of TQ and TR is

A. T = TR
B. TQ> TR
C. TQ = TR
D. TQ = 2 Tk.

View Answer	Favorite Question

Answer: Option C

Explanation:

TR, TP are two tangents drawn to a bigger circle from an external point T. we know that, length of tangents drawn from external point to circle are equal ∴TR = TP ___(i) Similarly TP, TQ are two tangent drawn to a smaller circle from an external point T. Again we have TP = TQ __(ii) From (i) & (ii), we have TR = TQ

Sonali &amp-Janata Bank | Officer (IT)| 04.01.2019

A. 2 hours
B. 9/2 hours
C. 23/4 hours
D. 6 hours
E. None of these

View Answer	Favorite Question

Answer: Option B

Explanation:

473 . Two lots of onions with equal quantity, one costing Tk. 10 per kg and the other costing Tk. 15 per kg are mixed together and whole lot is sold at Tk. 15 per kg . What is the profit or loss?

A. 10% loss
B. 10 % profit
C. 20% loss
D. 20% profit

View Answer	Favorite Question

Answer: Option D

Explanation:

Let each lot of onion - contain N kg onion, Then total cost price of these two lots together = 10N + 15N = 25N Selling price of whole lot = 15 x (N + N) = 15 x 2N = 30N Profit percentage = [(30N - 25N)/25N] x 100 % = (5/25) x 100% = 20%

Sonali &amp-Janata Bank | Officer (IT)| 04.01.2019

A. 82
B. 119
C. 65
D. 93
E. 66

View Answer	Favorite Question

Answer: Option C

Explanation:

Distance between two plane = √ (33)2 + (56)2 = 65

Bangladesh Bank - Assistant Director - 2011

A. 20 meter
B. 15 meter
C. 10 meter
D. 100 meter

View Answer	Favorite Question

Answer: Option C

Explanation:

বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. 1000
B. 900
C. 1200
D. 1400
E. 1350

View Answer	Favorite Question

Answer: Option D

Explanation:

1st tank holds = a gallons

2nd tank holds = a + 600 gallons

100 gallons pumped out

a + 600 - 100 = (a - 100)*3

a = 400

1st tank holds = 400 gallons

2nd tank holds = 1000 gallons

1st tank + 2nd tank = 1400 gallons (ans)

477 . Two truck 300 km away are travelling towards is other witha constant speed. Truck A is moving at a average speed 70 km/h while truck B is moving at average speed 50 km/h who long does it take them meet.

A. 5 hours
B. 3 hours
C. 2.5 hours
D. 6 hours

View Answer	Favorite Question

Answer: Option C

Explanation:

জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা-(NSI) Assistant Director- Research officer &amp- Assistant Programmer-০৮/১০/২০২১

A. There has been a slowdown in the rate of increase in world demand for coal over the last 5 years from 10% to 5%
B. It has been known for many years that there are vast stocks of coal under Antarctica which have yet to be economically exploited
C. Oil is being used increasingly in place of coal for many industrial and domestic uses
D. As coal resources are depleted more and marginal supplies , which are more costly to produce and less efficient in use , are being mined
E. Industries are increasingly using fossil fuels, now a days , as the new reserves of such energy have been discovered

View Answer	Favorite Question

Answer: Option E

Explanation:

To weaken the statement that the world's coal reserves will be exhausted by 2050, given the continued growth in demand, we need to find an option that presents a contrary or mitigating factor. Let's analyze the options provided:

A. There has been a slowdown in the rate of increase in world demand for coal over the last 5 years from 10% to 5%.
This option weakens the statement because a slower rate of increase in demand implies that the depletion of coal reserves may not occur as quickly as predicted. It suggests that demand growth is slowing down, which could extend the lifespan of coal reserves beyond 2050.

B. It has been known for many years that there are vast stocks of coal under Antarctica which have yet to be economically exploited.
This option weakens the statement because the existence of untapped coal reserves under Antarctica suggests that there are additional resources available. If these reserves become economically viable to exploit, it could significantly extend the lifespan of coal reserves beyond 2050.

C. Oil is being used increasingly in place of coal for many industrial and domestic uses.
This option weakens the statement because the increasing use of oil as a substitute for coal indicates a potential decrease in demand for coal. If industries and households are shifting to oil, it could reduce the rate of coal consumption and extend the lifespan of coal reserves.

D. As coal resources are depleted, more marginal supplies, which are more costly to produce and less efficient in use, are being mined.
This option supports the statement rather than weakening it. It suggests that as easily accessible and higher-quality coal resources are depleted, the remaining supplies become more expensive to produce and less efficient in use. This implies that the depletion of coal reserves may be accelerating.

E. Industries are increasingly using fossil fuels nowadays as new reserves of such energy have been discovered.
This option does not directly weaken the statement. While industries are using more fossil fuels, it does not specify whether coal specifically is being used more. Without information about the specific use of coal, it does not provide a clear contrary factor to the depletion of coal reserves.

Based on the analysis, the option that weakens the statement the most is option A: There has been a slowdown in the rate of increase in world demand for coal over the last 5 years from 10% to 5%. It suggests a potential decrease in demand growth, which could extend the lifespan of coal reserves beyond 2050.

Bangladesh Bank - Assistant Director - 2011

A. 14
B. 12
C. 11
D. 10
E. None of these

View Answer	Favorite Question

Answer: Option E

Explanation:

55% of 12/66 of 270 = 55/100 x 12/66 x 270 = 27

480 . What is the approximate growth of sales of B5 ?

A. 18%
B. 21%
C. 23%
D. 27%
E. 31%

View Answer	Favorite Question

Answer: Option D

Explanation:

The difference value of salse of B5 = 95 - 75 = 20

Approximately growth of salse of B5 = 20/75×100% = 26.67% = 27%

Bangladesh Bank - Assistant Director - 2013 ||

466 . Three partners shared the profit in a business in the ratio 5 : 7 : 8 . They had partnered for 14 months, 8 months and 7 moths respectively . What was the ratio of their investments ?

467 . Three years ago the government introduced the Youth Training Program to guarantee teenagers leaving school an alternative to the dole. Today, over one hundred thousand 17 and 18 year olds are still signing on for unemployment benefits . Each of the follow

468 . Train X leaves Dhaka at 10:00 AM and travels East at a constant speed of x miles per hour . If another Train Y leaves Dhaka at 11:30 AM and travels east along the same tracks at speed 4x/3 , then at what time will Train Y catch Train X ?

469 . Triangle XYZ and two angles measure are shown in the diagram below. What is the measure of ∠Y?

470 . Two banks offer interest rates of 6% & 7% respectively on savings account. Mr. X deposited a total amount of Tk.4000 in the bank and in one year his interest income was Tk.250. Find the investment in the bank with 7% interest?

471 . Two circles of equal radii touch externally at a point P . Form a point T on the target at P target TQ and TR are drawn to the circles with points of contact Q and R respectively. The relations of TQ and TR is

473 . Two lots of onions with equal quantity, one costing Tk. 10 per kg and the other costing Tk. 15 per kg are mixed together and whole lot is sold at Tk. 15 per kg . What is the profit or loss?

474 . Two planes leave the airport at the same time . Minutes later, plane A is 33 miles due north of the airport and plane B is 56 miles due east of the airport . How far apart are the two planes ?

475 . Two small circular parks of diameter 16 meter and 12 meter are to be replaced by a bigger circular park. What would be the radius of this new park, if the new park has to occupy the same space as the two small parks?

477 . Two truck 300 km away are travelling towards is other witha constant speed. Truck A is moving at a average speed 70 km/h while truck B is moving at average speed 50 km/h who long does it take them meet.

478 . Unless the new reserves are found soon, the world's supply of coal is being depleted in such a way that with demand continuing to grow at present rates, reserves will be exhausted by the year 2050. Which of the following , if true , will weaken he above a

479 . What is 55% of 12/66 of 270?

480 . What is the approximate growth of sales of B5 ?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক