3301 . Today is Arif's 12 th birthday and his father's 40 th birthday. how many years from today will Arif's father be twice as old as Arif at that time?

A. 18
B. 24
C. 16
D. 12

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Answer: Option C

Explanation:

ধরি, x বছর পর রাতুলের বাবার বয়সের দ্বিগুন হবে।

40 + x = 2 ( 12 + x)

40 + x = 24 + 2x

2x - x = 40 - 24

c = 16

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

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সাবস্ক্রিপশন লিংক

3302 . Today is Monday. After 61 days, it will be

A. Wednesday
B. Saturday
C. Tuesday
D. Friday

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Answer: Option B

Explanation:

The correct option is B Saturday
Each day of the week is repeated after 7 days.
So, after 63 days, it will be Monday.
∴ After 61 days, it will be Saturday.

Bangladesh Bank - Assistant Director - 2010

A. p/2-10
B. 3p/4-5
C. 3p/2-5
D. 5p-5
E. None of these

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Answer: Option B

Explanation:

3304 . Tom, Dick and Harry went for lunch to a restaurant. Tom had Tk. 100 with him. Dick had Tk. 60 and Harry had Tk . 40. They got a bill for Tk. 104 and decided to give a tip of Tk. 16 . They further decided to share the total expenses in the ratio of the amounts of money each carried . They amount of money which Tompaid more than what Harry paid is Tk.---

A. 120
B. 36
C. 60
D. 24
E. None of these

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Answer: Option B

Explanation:

Total pay = 104 + 16 = 120 TK

Now, Tom : Dick : Harry = 100 : 60 : 40 = 5 : 3 : 2

So, Tom paid = 5 / (5 + 3 + 2) × 120 = 60 TK

Harry paid = 2 / (5 + 3 + 2) × 120 = 24 TK

Tom more paid than Harry = 60 - 24 = 36 TK

3305 . Tom, Dick and Harry went for lunch to a restaurant. Tom had $100 with him , Dick had $60 and Harry had $40. They got a bill for $104 and decided to give a tip of $16. They further decided to share the total expenses in the ratio of the amounts of money

A. 120
B. 60
C. 24
D. 36
E. 200

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Answer: Option D

Explanation:

Total Expense = 104 + 16 = $ 120

Ratio = 100 : 60 : 40 = 5 : 3 : 2

Tom paid = 120 × ( 5/10) = 60

Harry paid = 120 ×( 2/10) = 24

60 - 24 = 36.

Bangladesh Bank - Assistant Director - 2009

A. x - 1000
B. x/2-100
C. x/2-2000
D. None

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Answer: Option B

Explanation:

3307 . Total price of a shirt and a pant is Tk. 850. If the price of the shirt increases by 12% and the pant by 5% then the total price become Tk. 934.50. What was the original price of the shirt before price increment?

A. Tk. 620
B. Tk. 650
C. Tk. 675
D. Tk. 600
E. None of these

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Answer: Option D

Explanation:

Let the original prices of the shirt and the pant be S & P respectively.

Then, S + P = 850 or, P = 850 - S

Again, 1.12S + 1.05P = 934.50

or, 1.12S + 1.05(850 - S) = 934.50

or, 1.12S + 1.05x850 - 1.05S = 934.50

or, 0.07S = 934.50 - 892.50 = 42

or, S = 42/0.07 = 600 TK.

3308 . Total production in July is 40 units. what is the approximate average unit cost for July?

A. 115
B. 140
C. 90
D. 3,600

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Answer: Option B

Explanation:

The average cost for 40 units Would be given by (Total cost/No.of units) = ( 4000 + 800 + 1200)/40 =
6000
40
= 150

Bangladesh Bank - Officer - 2015

A. 1 : 1
B. 3 : 4
C. 4 : 3
D. 2 : 3

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Answer: Option C

Explanation:

Bangladesh Bank - Officer(Cash) - 2016

A. 30
B. 40
C. 50
D. 60
E. None of these

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Answer: Option A

Explanation:

We have towns A, B, and C, with a straight highway connecting towns A and C, which is 60 miles long. The straight-line distance from A to B is 50 miles, and the straight-line distance from B to C is 50 miles.

The highway connecting A and C can be thought of as the hypotenuse of a right triangle, where the legs of the triangle are the distances from A to B and from B to the point on the highway (let's call it point D).

The triangle formed by points A, B, and D is similar to the triangle formed by points A, B, and C because they share the same angles. This is because vertical angles (formed by the highway and the straight-line distances) are congruent.

We can set up a proportion to find the distance from B to D:

BD/BC = AB/AC
Substituting the given values:

BD/60 = 50/100 (50 miles is half of 100 miles)

Now, solving for BD:

BD = 30 miles

So, the distance from town B to the point on the highway connecting towns A and C, which is closest to town B, is 30 miles.

বাংলাদেশ বনশিল্প উন্নয়ন কর্পোরেশন সহকারী ব্যবস্থাপক-০২.০৮.২০১৩

A. 3 : 2
B. 5 : 3
C. 7 : 4
D. 9 : 5

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Answer: Option B

Explanation:

3312 . Travelling at a constant speed of 32 miles per hours, a certain motorboat consumers 24gallons of fuel per hour. What is the fuel consumption of his boat this speed measured in miles per gallons of fuel?

A. 2/3
B. 3/4
C. 4/5
D. 4/3

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Answer: Option D

Explanation:

3313 . Triangle ABC has the following vertices: A (1,0) , B (5,0) and C (3,4) . which of the following is true ?

A. AB=BC
B. CA =CB
C. AB =AC
D. AC

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Answer: Option B

Explanation:

Let's calculate the lengths of the sides of triangle ABC using the distance formula to determine which of the given options is true:

Distance Formula: The distance between two points (x1, y1) and (x2, y2) is given by √((x2 - x1)^2 + (y2 - y1)^2).

A (1, 0) and B (5, 0): AB = √((5 - 1)^2 + (0 - 0)^2) = √(4^2 + 0) = 4.

B (5, 0) and C (3, 4): BC = √((3 - 5)^2 + (4 - 0)^2) = √((-2)^2 + 4^2) = √(4 + 16) = √20.

A (1, 0) and C (3, 4): AC = √((3 - 1)^2 + (4 - 0)^2) = √(2^2 + 4^2) = √(4 + 16) = √20.

Now, let's compare the lengths:

AB = 4 BC = √20 AC = √20

From the calculations, it's clear that AC = BC, so the correct statement is:

CA = CB

Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. 800
B. 600
C. 400
D. 300

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Answer: Option C

Explanation:

Let x be the number of oranges in the first basket.

The number of oranges in the second basket is 640 - x, as together they have 640 oranges.

Now, it is given that one-fifth (1/5) of the oranges in the first basket are taken to the second basket. This means (1/5)x oranges are moved to the second basket.

After this transfer, the number of oranges in the first basket becomes x - (1/5)x = (4/5)x.

The number of oranges in the second basket becomes 640 - x + (1/5)x = 640 - (4/5)x.

Now, according to the problem, when the number of oranges in both baskets becomes equal, we can set up an equation:

(4/5)x = 640 - (4/5)x

To solve for x, first, let's get rid of the fractions by multiplying both sides of the equation by 5:

4x = 3200 - 4x

Now, add 4x to both sides of the equation:

4x + 4x = 3200

8x = 3200

Next, divide both sides by 8 to solve for x:

x = 3200 / 8

x = 400

So, there were 400 oranges in the first basket.

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 57.9
B. 60
C. 50.7
D. 50.9

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Answer: Option A

Explanation:

Let the amount of tea blends be 2T and 3T respectively.

Then total cost = 2T x $2.8 + 3T x $3.2 = $15.2T

Total sell = (3T + 2T) x $4.8 = $24T

So, profit = (24T - 15.2T) / 15.2T x 100% = 57.9%

3301 . Today is Arif's 12 th birthday and his father's 40 th birthday. how many years from today will Arif's father be twice as old as Arif at that time?

3302 . Today is Monday. After 61 days, it will be

3303 . Together, Andrea and Brian weight p pounds. Brian weight 10 pounds more than Andrea. Brain and Andrea's dog Cubby, weight p/4 pounds more than Andrea. In terms of p, what is Cubby's weight in pounds?

3305 . Tom, Dick and Harry went for lunch to a restaurant. Tom had $100 with him , Dick had $60 and Harry had $40. They got a bill for $104 and decided to give a tip of $16. They further decided to share the total expenses in the ratio of the amounts of money

3306 . Topu's income is Tk. 2,000 more than that of Jamal. Their total salary is Tk. x. What is Jamal's salary?

3307 . Total price of a shirt and a pant is Tk. 850. If the price of the shirt increases by 12% and the pant by 5% then the total price become Tk. 934.50. What was the original price of the shirt before price increment?

3308 . Total production in July is 40 units. what is the approximate average unit cost for July?

3309 . Tow numbers A and B are such that the sum of 5% of A and 4%of B is two-third of the sum of 6% of A and 8%of B. Find the ratio of A : B .

3311 . Train X covers a distance of 150 km in 2 hours. Train Y covers a distance of 135 km in 3 hours. What is the ratio of speed of train X to train Y?

3312 . Travelling at a constant speed of 32 miles per hours, a certain motorboat consumers 24gallons of fuel per hour. What is the fuel consumption of his boat this speed measured in miles per gallons of fuel?

3313 . Triangle ABC has the following vertices: A (1,0) , B (5,0) and C (3,4) . which of the following is true ?

3314 . Two baskets together have 640 oranges if one-fifth of the oranges in the first basket be taken to the second basket then, number of oranges in both baskets become equal. The number of oranges in the first basket is

3315 . Two blends of tea costing $2.80 and $3.20 per kg respectively, are mixed in the proportion 2 : 3. The mixture is sold at $4.80 per kg. What was the percentage of profit?

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