4771 . A and B can do a work in 12days,B and C in 15days,C and A in 20days.If A,B and C work together ,They will complete the work in:

A. 5days
B. 7days
C. 10Days
D. 15Days

View Answer	Favorite Question

Answer: Option C

Explanation:

A + B can do the work in 12 days.

In a single day A + B will do 1/12 th portion of the work.

B + C can do the work in 15 days.

In a single day B + C will do 1/15 th portion of the work.

A + C can do the work in 20 days.

In a single day A + C will do 1/20 th portion of the work.

In a day (A + B) + (A + C) + (C + A) will do = (1/12) + (1/15) + (1/20) portion of the work.

2(A + B + C) = (1/12) + (1/15) + (1/20) = 1/5 portion of the work.

Then, (A + B + C) will do = 1/10 portion of the work in a day

A + B + C will complete the work in 10 days.

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

৩০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।

সাবস্ক্রিপশন লিংক

4772 . A bakery opened yesterday with its daily supply of 40 dozens of rolls. Half of the rolls were sold by noon, and 80% of the remaining rolls were sold between noon and closing time. How many dozens of roll had not been sold when the bakery closedyesterday?/গতকাল বেকারী খোলার ৪০ ডজন রোল ছিল। অর্ধেক রোল দুপুরের মধ্যে বিক্রি হয়ে গেল। অবশিষ্ট রোলের ৮০% দুপুরের পর থেকে বেকারী বন্ধ করা পর্যন্ত সময়ের মধ্যে বিক্রি হয়ে গেল। গতকাল বেকারী বন্ধের সময় কতগুলো রোল অবিক্রিত ছিল?

A. 2 dozen
B. 4 dozen
C. 5 dozen
D. 8 dozen

View Answer	Favorite Question

Answer: Option B

Explanation:

4773 . A better scored 87 runs in her 17 th innings , which increased her carrer average by 3 rund. What is the average run after the3 17 th innings?

A. 39
B. 35
C. 42
D. 40

View Answer	Favorite Question

Answer: Option A

Explanation:

Let the batter's career average before her 17th inning be "x" runs per inning.

After her 17th inning, her career average increased by 3 runs, so her new average is (x + 3) runs per inning.

In the first 16 innings, she scored a total of 16x runs.

After her 17th inning, her total runs scored became 16x + 87 runs.

Now, we can set up an equation:

(16x + 87) / 17 = (x + 3)

Now, solve for x:

16x + 87 = 17x + 51

87 - 51 = 17x - 16x

36 = x

So, her career average before the 17th inning was 36 runs per inning, and her new average after the 17th inning is (36 + 3) = 39 runs per inning.

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক - 26.11.2021

A. 35
B. 12
C. 10
D. 9

View Answer	Favorite Question

Answer: Option A

Explanation:

Styles = 5
and colors = 7
So, Considering both style and color
= 5/7 = 35

জীবণ বীমা কর্পোরেশন (সহকারী ম্যানেজার) 16-10-2020

A. 5km./hour
B. 6 km/hour
C. 7 km/hour
D. 8km/hour

View Answer	Favorite Question

Answer: Option C

Explanation:

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক - 26.11.2021

A. 50
B. 60
C. 75
D. 80

View Answer	Favorite Question

Answer: Option A

Explanation:

বাংলাদেশ তেল- গ্যাস ও খনিজসম্পদ কর্পোরেশন (পেট্রোবাংলা) || সহকারী ব্যবস্থাপক (22-11-2024) || 2024

A. 138
B. 118
C. 104
D. 208

View Answer	Favorite Question

Answer: Option A

Explanation:

ওয়েজ আর্নার্স কল্যাণ বোর্ড || উপ সহকারী পরিচালক (22-11-2024) || 2024

A. 2 blocks north
B. 1 block west
C. 3 blocks south
D. 4 blocks east

View Answer	Favorite Question

Answer: Option D

Explanation:

Let's track the bus's movements step by step:

The bus travels 2 blocks north.
Then, it travels 2 blocks east.
Next, it goes 1 block south.
Afterward, it continues 2 blocks east.
Finally, it moves 1 block south.

Now, let's see where the bus is in relation to the hotel:

It went 2 blocks north initially but then moved 1 block south, so it's still 1 block north of the starting point.
It went 2 blocks east and then 2 blocks east again, which adds up to 4 blocks east of the starting point.

So, the bus is 1 block north and 4 blocks east of the hotel. Therefore, the answer is 4 blocks east.

সহকারী পরিচালক(AD) -12.11.2021

A. 20

View Answer	Favorite Question

Answer: Option A

Explanation:

Microcredit Regulatory Authority (সহকারী পরিচালক) 05-03-2021

A. 100 m
B. 111 1/9 m
C. 25 m
D. 50 m

View Answer	Favorite Question

Answer: Option A

Explanation:

When B runs 25 m

A runs 45/2 = 22.5 m

B 1000m, a runs ( 45/2×1/25×1000) = 900 m

B beats A by ( 1000 - 900) m = 100 m

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

A. 60
B. 80
C. 90
D. 180

View Answer	Favorite Question

Answer: Option D

Explanation:

Weight of sand and water = 1/3 + 3/5 = 14/15

remaining weight of gravel = 1 - 14/15 = 1/15

As per Question, 1/15 = 12 pound

1 or Total weight = 12*15 = 180 (Ans)

বাংলাদেশ পল্লী বিদ্যুতায়ন বোর্ড ।। সহকারী সচিব/সহকারী পরিচালক(প্রশাসন) (18-01-2019)

A. 4%
B. 6%
C. 8%
D. 10%

View Answer	Favorite Question

Answer: Option D

Explanation:

আমরা জানি, I = Pnr

বা,7/5P-P = P x 4 xr

বা,5/2P=Px4xr

বা, r = 10%

গ্যাস ট্রান্সমিশন কোম্পানি লিমিটেড | সহকারী ব্যবস্থাপক - 26.11.2021

A. 20
B. 10
C. 40
D. 30

View Answer	Favorite Question

Answer: Option B

Explanation:

To achieve a 50/50 mixture of water and acid, you need to add an equal amount of water to the existing 10 ml of acid. Since you have 30 ml of the mixture, which already contains 10 ml of acid, you need to add an additional 10 ml of water (equal to the amount of acid) to balance it out. So, the answer is 10 ml.

BCSIC নিয়োগ পরীক্ষা - ২০১৮ পদ: এক্সটেনশন অফিসার তারিখ: ০৯-১১-২০১৮

A. 400
B. 2050
C. 3040
D. 4060

View Answer	Favorite Question

Answer: Option D

Explanation:

উত্তরা ব্যাংক | অ্যাসিস্ট্যান্ট অফিসার | 23-07-2022

A. 60
B. 55
C. 50
D. None of these

View Answer	Favorite Question

Answer: Option A

Explanation:

Remaining people = 15 - 4 = 11
15 people need to work for 44 hours.
So, 11 " " " " (44x15)/11" = 60 hours

Bangladesh Bank - Assistant Director - 2001

4771 . A and B can do a work in 12days,B and C in 15days,C and A in 20days.If A,B and C work together ,They will complete the work in:

4773 . A better scored 87 runs in her 17 th innings , which increased her carrer average by 3 rund. What is the average run after the3 17 th innings?

4774 . A bicycle company makes five styles of bikes in seven different colors. How many different bicycles can the company make when considering both style and color?

4775 . A boat has a crack in its bull which is leaking water into the boat and could pump which can pump the water out in 8 hours . If the boat is 168 km away from the shore and the pump is running what is the minimum speed the boat should run at so that it can reach the shore before sinking?

4776 . A box contains 200 pens of which 25% are red and the rest are black. You sold a certain number of pens, of which 60% were black. You found that among the remaining pens, only 20% are red. How many pens did you sell?

4777 . A box having height 2m, length 10m and width 7m have the top lid open. What is the surface area of the box?

4778 . A bus picks up a group of tourists at a hotel. The sightseeing bus travels 2 blocks north, 2 blocks east. I block south, 2 blocks east, and 1 block south. Where is the bus in relation to the hotel?

4779 . A can do a piece of work in 24 days, B in 32 days and C in 64 days. All begin to do it together, but A leaves after 6 days and B leaves 6 days before the completion of the work. How many days did the work last?

4780 . A can run 22.5 m while B runs 25 m. In a kilometer race B beats A by :

4781 . A cement mixture is composed of 3 elements. Weight, 1/3 is water and the remaining 12 pounds of the mixture is gravel .What is the weight of the entire mixture in pounds?

4782 . A certain amount of money earning simple interest becomes 7/5th of the initial amount in 4 years . What is the interest rate?

4783 . a chemial is mixed 30 ml mixed , 10 ml is acid , how much ml of acid must be mixed such that a 50/50 mixure of water and acid is attend if no additional water is added

4784 . A class had 30 students. The class needs to select 3 represntatives.In how many ways can this be done?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক