3421 . The total cost of flooring a room at Tk. 8.50 per square metre is TK. 510. If the length the room is 8 m , its breadth is -

A. 8.5 m
B. 7.5 m
C. 10.5 m
D. 12.5 m

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Answer: Option B

Explanation:

Area = (510/8.50)

= (510/85)×10

= 60m²

∴Breadth = 60/8

= 7.5 m

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3422 . The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?

A. 40
B. 60
C. 120
D. Cannot be determined

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Answer: Option B

Explanation:

Physics + mathematics + chemistry = chemistry + 120

Or, physics + mathematics = 120

So average is 120/2 = 60.

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সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

A. 24 years
B. 38 years
C. 34 years
D. 32 years

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Answer: Option B

Explanation:

Total age now = 93

Total age 10 years ago = ( 93 - 3 × 10) = 63

Masud's age 10 years ago = 4 × 63 /2 + 3 + 4 = 28

Masud's age now = 28 + 10 = 38 year's.

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Bangladesh Bank - Officer(Cash) - 2016

A. Total population of the Asian zone will still be greater than the total population of the European zone
B. Total population of the European zone will be greater than the total population of the Asian zone
C. Total population of both zones will be equal
D. We cannot say anything conclusively

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Answer: Option D

Explanation:

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3425 . The total salary of X, Y and Z is Tk.90,000. X earns twice of what Z earns, and Y earns 1.5 times of what Z earns. What is the salary of Z?

A. Tk. 15,000
B. Tk.20,000
C. Tk.25,000
D. Tk.30,000

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Answer: Option B

Explanation:

Salary of X = 2Z

Salary of Y = 1.5Z

Now, X+Y+Z = 90,000

2Z+1.5Z+Z = 90,000

4.5Z = 90,000

Z = 90000/4.5 = 20,000 tk (Ans)

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সমন্বিত ব্যাংক অফিসার (ক্যাশ) || (02-06-2023)

3426 . The total surface area of a hemisphere of radius r is-

A. $4 {πr}^{2}$
B. ${πr}^{2}$
C. $2 {πr}^{2}$
D. $3 {πr}^{2}$

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Answer: Option A

Explanation:

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সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021

A. 15
B. 20
C. 10
D. 22

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Answer: Option C

Explanation:

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জনতা ও রূপালী ব্যাংক- অফিসার ১৩.১২.২০১৯

A. 1.001
B. 1.011
C. 1.003
D. 1.111

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Answer: Option D

Explanation:

Hints: 1.000 + 0.100 + 0.010 + 0.001 = ( + ) 1.111

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3429 . The value of -3-(-10) is how much greater than the value of -10-(-3)?

A. 6
B. 7
C. 14
D. 26

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Answer: Option C

Explanation:

The value of - 3 - ( - 10) is greater than the value of - 10 - ( - 3) by = - 3 - ( - 10) - [ - 10 - ( - 3]

= - 3 + 10 + 10 - 3 = 14

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Bangladesh Bank - Officer(Cash) - 2011

B. 6
C. 14
D. 12

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Answer: Option D

Explanation:

- 4 - ( - 10) = - 4 + 10 = 6

- 10 - ( - 4) = - 10 + 4 = - 6

6 - ( - 6) = 6 + 6 = 12.

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Bangladesh Bank - Assistant Director - 2010

A. 0.1
B. .1
C. 0.01
D. 0.001

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Answer: Option C

Explanation:

0.1 × 0.1 = 0.01

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সমন্বিত ৪ ব্যাংক - সহকারী প্রোগ্রামার - 25.09.2020

A. 7
B. 91
C. 143
D. 169

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Answer: Option A

Explanation:

1001÷11 of 13

=> 1001÷ (11×13)

=> 1001÷143 = 7

Ans is 7

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Bangladesh Bank - Assistant Director - 2014

A. 3260
B. 3280
C. 3200
D. 3240

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Answer: Option D

Explanation:

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3434 . The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is Tk.8748 its purchases price was--

A. 12000
B. 12500
C. 10000
D. 11370

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Answer: Option A

Explanation:

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3435 . The value of a machine is Tk.6250. Its value decreases by 10% during the first year, 20% during the second year and 30% during the third year. What will be the value of the machine after 3 years?

A. 2650
B. 3050
C. 3150
D. 3750

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Answer: Option C

Explanation:

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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

3421 . The total cost of flooring a room at Tk. 8.50 per square metre is TK. 510. If the length the room is 8 m , its breadth is -

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3422 . The total number obtained by a student in Physics, Chemistry and Mathematics together is 120 more than the marks obtained by him in Chemistry. What is the average mark obtained by him in Physics and Mathematics together?

3423 . The total of the ages of Ali , Gazi and Masud is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4 . What is the present age of Masud ?

3424 . The total population of 10 countries in the Asian zone is greater than the total population of 11 countries in the European zone. What can we say if one of the countries is dropped from the Asian zone ?

3425 . The total salary of X, Y and Z is Tk.90,000. X earns twice of what Z earns, and Y earns 1.5 times of what Z earns. What is the salary of Z?

3427 . The value of "A" varies in inverse proportion as the square of "B". If the value of "A" is equal to 40 , when "B" is equal to 12. What would be the value of "A" when "B" is equal to 24?

3428 . The value of (1+.1+.01+.001) is :

3429 . The value of -3-(-10) is how much greater than the value of -10-(-3)?

3430 . The value of -4-(-10) is how much greater than the value of -10-(-4) ?

3431 . The value of 0.1×0.1 is-

3432 . The value of 1001 ÷ 11 of 13 is :

3433 . The value of a machine depreciates 10% annually. If its present value is Tk.4000, its value 2 years hence will be--

3434 . The value of a machine depreciates at the rate of 10% every year. It was purchased 3 years ago. If its present value is Tk.8748 its purchases price was--

3435 . The value of a machine is Tk.6250. Its value decreases by 10% during the first year, 20% during the second year and 30% during the third year. What will be the value of the machine after 3 years?

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