586 . 2/0=?

A. 1
B. undefiend
D. 2

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Answer: Option B

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উত্তরা ব্যাংক | অ্যাসিস্ট্যান্ট অফিসার | 23-07-2022

A. 1
B. 4
C. 0.4
D. 0.04

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Answer: Option D

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Sonali- Janata &amp- Agrani Bank Offier (Cash Recruitment) 22.02.2008

A. 10
B. 12
C. 15
D. 20

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Answer: Option C

Explanation:

20×30=(20×x)+15×(35−x)so, (x−20)+15×(35−x)=600⇒20x+525−15x=600⇒5x=75∴x=15 days

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Agrani Bank Ltd. Recruitment Test for Senior Officer 12.02.2010

A. 6
B. 8
C. 10
D. 12
E. None of these

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Answer: Option E

Explanation:

By 30 days a work is done by 20 workers

so by 25 days '' '' '' '' '' (20*30/25) = 24

So additional workers needed = 24 - 20 = 4

ans: 4 workers

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590 . 25 percent of 30 is 75 percent of what number?

A. 10
B. 15
C. 25
D. 45

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Answer: Option A

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591 . 28 is divided into two parts such that 6 times the first part added to 4 times the second part makes 152. The first part is

A. 16
B. 18
C. 20
D. 22

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Answer: Option C

Explanation:

Let's call the first part "x" and the second part "y."

We are given two pieces of information:

The sum of the two parts is 28: x + y = 28
6 times the first part added to 4 times the second part equals 152: 6x + 4y = 152

We can use these two equations to solve for the value of "x."

First, let's solve the first equation for "y":

x + y = 28 y = 28 - x

Now, substitute this expression for "y" into the second equation:

6x + 4(28 - x) = 152

Now, solve for "x":

6x + 112 - 4x = 152

Combine like terms:

2x + 112 = 152

Subtract 112 from both sides:

2x = 152 - 112 2x = 40

Now, divide by 2:

x = 40 / 2 x = 20

So, the first part is 20.

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

A. 2
B. 100
C. 37
D. 4.6

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Answer: Option A

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593 . 2m+1 - 2m = ?

A. 2
B. 4
C. 2m
D. 2m+1

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Answer: Option C

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594 . 3, 9, 5, 11, 7, ...

A. 9
B. 10
C. 13
D. 15

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Answer: Option C

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595 . 3 & 5 are factors of F. We can conclude that--

A. 3 x 5 = F
B. 8 is a factor of F
C. F is multiple of 15
D. 3 & 5 are the only factors of F

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Answer: Option C

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596 . 3 , 12, 30,. 39 are the first five terms of a sequence . Each term after the first is obtained by adding 9 to the term immediately preceding it .which term in the sequence is equal to 3 + (33 -1) 9?

A. 8 th
B. 9th
C. 32nd
D. 33rd
E. None of these

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Answer: Option D

Explanation:

First, term, = 3

General difference = 12 - 3 = 9

Here, 3 + ( 33 - 1) 9 = 3 + 32 × 9 = 291

nth term = a + ( n - 1) d

291 = 3 + ( n - 1) 9

n - 1 = 32

n = 33

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597 . 3.003/2.002 =?

A. 1.05
B. 1.5
C. 1.501
D. 1.5015
E. none of them

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Answer: Option B

Explanation:

3.003/2.002

= 3003/2002

= 1.5

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598 . 3 liters of water is added to 15 liters of mixture of a 20% solution of alcohol in water. The strength of alcohol is now--

A. 24%
B. 16%
C. 25/2%
D. 50/3%

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Answer: Option D

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599 . 3 men or 5 women or 8 boys can finish a work in 38 days. How many days will be required to complete the same work by 6 men , 10 women and 6 boys together ?

A. 5
B. 6
C. 7
D. None of these

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Answer: Option D

Explanation:

Work done by 3 men = 5 women = 8 boys
1 man = 8/3 boys
6 men = 16 boys
1 woman = 8/5 boys
10 women = 16 boys
Now, 6 men + 10 women + 6 boys = 16 + 16 + 6 = 38 boys
8 boys need 38 days
1 boy needs (38x8) days
So, 38 boys need (38x8)/38 = 8days

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600 . 3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?

A. 10
B. 11
C. 12
D. 9

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Answer: Option C

Explanation:

3 pumps 2 days empties by working 8 hrs

1 " 2 " " " " ( 8 × 3) hrs

1 " 1 " " " " ( 8 × 3 × 2) hrs

4 " 1 " " " " ( 8 × 3 × 2) /4 hrs

= 12 hrs

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Bangladesh Bank - Officer(Cash) - 2016

586 . 2/0=?

587 . 20% of 0.2 is equal to--

588 . 20 men can finish a work in 30 days. After how many days should 5 men leave the work so that the work may be finished in 35 days?

589 . 20 workers can finish a task in 30 days. How many additional workers are needed to finish the same task in 25 days?

590 . 25 percent of 30 is 75 percent of what number?

591 . 28 is divided into two parts such that 6 times the first part added to 4 times the second part makes 152. The first part is

592 . 2log105 + log10 36 - log10 9 = ?

593 . 2m+1 - 2m = ?

594 . 3, 9, 5, 11, 7, ...

595 . 3 & 5 are factors of F. We can conclude that--

596 . 3 , 12, 30,. 39 are the first five terms of a sequence . Each term after the first is obtained by adding 9 to the term immediately preceding it .which term in the sequence is equal to 3 + (33 -1) 9?

597 . 3.003/2.002 =?

598 . 3 liters of water is added to 15 liters of mixture of a 20% solution of alcohol in water. The strength of alcohol is now--

599 . 3 men or 5 women or 8 boys can finish a work in 38 days. How many days will be required to complete the same work by 6 men , 10 women and 6 boys together ?

600 . 3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?

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