3406 . The sum of two numbers is 25 and their difference is 13. Find their product.

A. 104
B. 114
C. 315
D. 325

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Answer: Option B

Explanation:

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3407 . The sum of two numbers is 28/25 of the first number. The second number is what percent of the first ?

A. 12%
B. 14%
C. 16%
D. 18%

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Answer: Option A

Explanation:

Hints : Let the numbers be x and y

x + y = 28/25 × x

y = 28x /25 - x

y = 28x - 25x /25

y = 3x /25

So the second number is 3x /25

Now, percentage = 3x/25/x × 100 = 3x/25 × 1/x × 100% = 12%

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3408 . The sum of two numbers is 40 and their difference is 4. The ratio of the numbers is :

A. 22:9
B. 11:9
C. 11:18
D. 21:19

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Answer: Option B

Explanation:

x+y=40…(1)

x-y=4…(2)

By solving these equations we get,

x=22

y=18

So, x:y=22:18=11:9

(ans)

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3409 . The sum of two numbers is 56. If three times of the smaller number is one-half of the larger number, what is the larger number?

A. 16
B. 7.5
C. 4
D. 48
E. None of these

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Answer: Option D

Explanation:

let, the larger number = x

smaller number = x - 56

atq,

3(56 - x) = x/2

or,7x/2 = 168

or,x = 24*2 = 48

so, the larger number is = 48 (ans)

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3410 . The sum of two numbers is equal to thrice difference. If the smaller of the numbers is 10 find the other number.

A. 15
B. 20
C. 40
D. none of these

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Answer: Option B

Explanation:

ধরি, সংখ্যা দুটি x ও y ; যেখানে x>y

x + y = 3 ( x - y)

x + 10 = 3 ( x - 10)

x + 10 = 3x - 30

2x = 40

x = 20

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3411 . The sun of daily income of P, Q and R is Tk.90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?

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

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Answer: Option C

Explanation:

P+Q+R = 90 tk

Q = 10+P

R = 2Q = 2(10+P) = 20+2P

P+Q+R = 90

P+10+P+20+2P = 90

P = 15

So, Q = 10+P = 10+15 = 25

Now, P+Q = 15+25 = 40

Average of P and Q is = 40/2 = 20 (Ans)

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3412 . The surface area of hollow cylinder with radius 'r and height 'h' is measured by-

A. $2 π r - h$
B. $2 π r + h$
C. $π r h$
D. $2 π r h$

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Answer: Option D

Explanation:

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প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021

A. Increases by 2%
B. Decreases by 1%
C. Increases by 1%
D. Decreases by 2%

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Answer: Option B

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জনতা ব্যাংক || অফিসার (আরসি) (28-06-2024) || 2024

A. 4°
B. 43.1°
C. 68°
D. 132°

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Answer: Option C

Explanation:

To convert a temperature from Celsius (°C) to Fahrenheit (°F), you can use the following formula:

°F = (°C x 1.8) + 32

where °C is the temperature in Celsius and °F is the temperature in Fahrenheit.

To convert 20°C to Fahrenheit:

°F = (20°C x 1.8) + 32 °F = 36°F + 32 °F = 68°F

Therefore, 20°C is equal to 68°F.

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সহকারী পরিচালক(AD) -12.11.2021

A. 28
B. 22
C. 27
D. 23
E. None of these

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Answer: Option E

Explanation:

Difference in temperature is always the same in every temperature unit. Here, the temperature difference is (25 - 3) = 22°F. Therefore, in Celsius scale it will be 22°C.

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3416 . The three rational numbers between 3 and 4 are:

A. 5/2,6/2, 7/2
B. 13/4, 14/4, 15/4
C. 12/7, 13/7, 14/7
D. 11/4, 12/4, 13/4

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Answer: Option B

Explanation:

Find the average of 3 and 4: (3 + 4) / 2 = 7 / 2 = 3.5
So, 3.5 is the first rational number between 3 and 4.

Find the average of 3 and 3.5: (3 + 3.5) / 2 = 6.5 / 2 = 13 / 4
So, 13/4 is the second rational number between 3 and 4.

Find the average of 3.5 and 4: (3.5 + 4) / 2 = 7.5 / 2 = 15 / 4
So, 15/4 is the third rational number between 3 and 4.

The three rational numbers between 3 and 4 are 13/4, 14/4 (which simplifies to 7/2), and 15/4.

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প্রবাসী কল্যাণ ব্যাংক-সিনিয়র অফিসার-09-10-2021

A. 5 cm
B. 3 cm
C. 4 cm
D. 7cm

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Answer: Option A

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অফিসার (সাধারণ) ২৭.১২. ২০১৯

A. 40 years
B. 30 years
C. 20 years
D. 18 years
E. None of these

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Answer: Option B

Explanation:

ধরি, 10 বছর আগে এদের বয়স ছিলো x, 2x, 3x

x + 10 + 2x + 10 + 3x + 10 = 90

6x + 30 = 90

6x = 90 - 30

6x = 60

x = 10

B's present age = (2x + 10) = 30 years

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দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 12 years
B. 13 years
C. 14 years
D. 15 years

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Answer: Option A

Explanation:

মানবাধিকার দিবস জাতিসংঘের নির্দেশনায় বিশ্বের সকল দেশে প্রতি বছর ১০ ডিসেম্বর পালিত হয়। জাতিসংঘের সাধারণ পরিষদ কর্তৃক ১০ ডিসেম্বর, ১৯৪৮ সাল থেকে দিবসটি উদযাপন করা হয়। এছাড়াও, 'সার্বজনীন মানব অধিকার সংক্রান্ত ঘোষণাকে' বাস্তবায়নের লক্ষ্যে এ তারিখকে নির্ধারণ করা হয়। সার্বজনীন মানব অধিকার ঘোষণা ছিল ২য় বিশ্বযুদ্ধ পরবর্তী নবরূপে সৃষ্ট জাতিসংঘের অন্যতম বৃহৎ অর্জন।

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3420 . The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

A. 12
B. 24
C. 26
D. None of these

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Answer: Option A

Explanation:

ATQ, A + B = 12 + B + C
বা, A + B - B - C = 12
∴ A - C = 12 years

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Bangladesh Bank - Assistant Director - 2014

3406 . The sum of two numbers is 25 and their difference is 13. Find their product.

3407 . The sum of two numbers is 28/25 of the first number. The second number is what percent of the first ?

3408 . The sum of two numbers is 40 and their difference is 4. The ratio of the numbers is :

3409 . The sum of two numbers is 56. If three times of the smaller number is one-half of the larger number, what is the larger number?

3410 . The sum of two numbers is equal to thrice difference. If the smaller of the numbers is 10 find the other number.

3411 . The sun of daily income of P, Q and R is Tk.90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?

3413 . The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue.

3414 . The temperature in a city was 20⁰ Celsius. What is the equivalent of this temperature in degrees Fahrenheit?

3415 . The temperature in a home freezer varies from 25 degree F to 3 degree F. What is the difference, in Celsius, between these two temperatures?

3416 . The three rational numbers between 3 and 4 are:

3417 . The three sides of a triangle are x+1 , 2x -1 and 3x +1 respectively and the perimeter is 25 cm. The length of the smallest side is -

3418 . The total age of A, B and C is 90 years. Ten years ago the ratio of their ages was 1 : 2 : 3. What is the present age of B?

3419 . The total age of A and B is 12 years more than the total age of B and C .C is how many years younger than A?

3420 . The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?

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