1801 . If 15 women working at the same rate can produce 25 dolls in an hour, how many dolls would 20 women make in 45 minutes?

A. 20
B. 25
C. 30
D. 50

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Answer: Option B

Explanation:

15 Women in 60 minutes can produce = 25 dolls

1 Women in 60 minutes can produce = 25/15 dolls

1 Women in 1 minutes can produce =25/60×15 dolls

So, 20 Women in 45 minutes can produce = 25×20×45/60×15 = 25 dolls (Ans)

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1802 . If 150 is increased by 60% and then decreased by x percent the result is 192. What is x ?

A. 20
B. 30
C. 32
D. 25
E. None

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Answer: Option A

Explanation:

Since at first increase by 60% so the number is 150 + 150 × 60/100 = 240

Again, since decrease by x% then we get 240 - 240 × x/100 = 192

= ) 240 - 12x/5 = 192

= ) 12x/5 = 240 - 192

= ) x = 48×5/12

So x = 20

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Probationary Officer | 31.03.2017 ||

A. 20
B. 30
C. 32
D. 25

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Answer: Option A

Explanation:

Since at first increase by 60% so the number is 150 + 150 × 60/100 = 240

Again, since decrease by x% then we get 240 - 240 × x/100 = 192

= ) 240 - 12x/5 = 192

= ) 12x/5 = 240 - 192

= ) x = 48×5/12

So x = 20

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1804 . If ${(\frac{1}{5})}^{3 y} = 0.008,$ then find ${(0.25)}^{y} = ?$

A. $0.75$
B. $- 0.75$
C. $0.25$
D. $0.0$

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Answer: Option C

Explanation:

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Probashi Kallyan Bank-Officer (Cash)-25-09-2021

A. -2
C. 1/2
D. 3

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Answer: Option A

Explanation:

16(4a)=1

or, 4a=1/16

or, 4a=4-2

or, a=-2

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1806 . If 18 identical machines required 40 days to complete a job, how many fewer days would have been required to do the job if 6 additional machines of the same type had been used from the beginning?

A. 10
B. 13.33
C. 16
D. 26.66

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Answer: Option A

Explanation:

18 machines complete a job in 40 days

So, 18 + 6 = 24 machines complete the job in 40 x 18 / 24 = 30 days

Number of days saved = 40 - 30 = 10 days

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1807 . If 194 means AID, BEFF means what?

A. 2254
B. 2256
C. 2846
D. None of these

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Answer: Option D

Explanation:

Hints: AID = 194 ; যেখানে A = 1, I = 9 এবং D = 4 সুতরাং BEEF = 2566 ; যেখানে B = 2, E = 5, এবং F = 6। উল্লেখিত অপশনে সঠিক উত্তর নাই

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1808 . If $\frac{1}{y} = 3 \frac{1}{2}$ then $\frac{1}{y + 2} = ?$

A. $\frac{1}{16}$
B. $\frac{2}{7}$
C. $\frac{2}{11}$
D. $\frac{7}{16}$

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Answer: Option D

Explanation:

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সমন্বিত ৬ ব্যাংক ও আর্থিক প্রতিষ্ঠান - সহকারী প্রোগ্রামার - 18.03.2021

A. 9
B. 10
C. 7
D. 8

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Answer: Option B

Explanation:

x is less than 4 and y is less than 7. That means that if only the value of x+y is restricted to being an integer, x could be 3.5 and y could be 6.5, and so x+y=10. Since x+y cannot be 11, 10 is the largest integral value.

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1810 . If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?

A. 13 : 42
B. 19 : 43
C. 15 : 42
D. 17 : 43

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Answer: Option D

Explanation:

In 1st metal,

Zinc = 2×(1/3) = 2/3

Copper = 2×(2/3) = (4/3)

In 2nd metal,

Zinc = 3×(1/4) = (3/4)

Copper = 3×(3/4) = (9/4)

New ratio , Zinc : Copper = {(2/3) + (3/4)} :{(4/3) + (9/4)}

= {(8 + 9)/12}:{(16 + 27)/12}

= (17/12):(43/12)

= 17:43 (Ans)

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Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 17 : 43
B. 13 : 42
C. 19 : 43
D. 15 : 42

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Answer: Option A

Explanation:

In 1st metal,

Zinc = 2×(1/3) = 2/3

Copper = 2×(2/3) = (4/3)

In 2nd metal,

Zinc = 3×(1/4) = (3/4)

Copper = 3×(3/4) = (9/4)

New ratio , Zinc : Copper = {(2/3) + (3/4)} :{(4/3) + (9/4)}

= {(8 + 9)/12}:{(16 + 27)/12}

= (17/12):(43/12)

= 17:43 (Ans)

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1812 . If 2 men or 3 women or 4 boys can do a piece of work in 52 days, then the same piece of work will be done by 1 man . 1 woman and 1 boy in -

A. 48 days
B. 36 days
C. 45 days
D. 50 days

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Answer: Option A

Explanation:

in one day 1 man do, (1/2) (1/52) work

1 woman do (1/3)(1/52) work

1 boy do (1/4) (1/52) work

three do 1/52 (1/2 + 1/3 + 1/4) work.

(1/52)(26/24) = 1/48

1 work is done in 48 days

ans: 48 days

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সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. Tk. 500
B. Tk. 750
C. Tk. 1000
D. Tk. 15000

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Answer: Option C

Explanation:

Let table cost x tk

A.Q.T

2x + 3y = 3500….(1)

3x+ 2y = 4000……(2)

( 2)* 3-(1)*2

We get x= 1000

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পূবালী ব্যাংক লিমিটেড || জুনিয়র অফিসার (30-09-2023) || 2023

A. 5/7
B. 3/4
C. 2/5
D. 3/7

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Answer: Option D

Explanation:

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1815 . If 20% of 200 equals 5.5% of 'x', what is the value of 'x' ?

A. 2000
B. 1205
C. 2100
D. 1220
E. None of these

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Answer: Option E

Explanation:

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1801 . If 15 women working at the same rate can produce 25 dolls in an hour, how many dolls would 20 women make in 45 minutes?

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1802 . If 150 is increased by 60% and then decreased by x percent the result is 192. What is x ?

1803 . If 150 is increased by 60% and then decreased by x percent the result is 192 What is X?

1805 . If 16(4a) = 1, find the value of a.

1806 . If 18 identical machines required 40 days to complete a job, how many fewer days would have been required to do the job if 6 additional machines of the same type had been used from the beginning?

1807 . If 194 means AID, BEFF means what?

1809 . If 2 < x < 4 and 3 < y < 7, what is the largest integer value of x + y?

1810 . If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?

1811 . If 2 kg of metal, of which 1/3 is zine and the rest is copper , be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper , then what will be the ratio of zinc to copper in the mixture?

1812 . If 2 men or 3 women or 4 boys can do a piece of work in 52 days, then the same piece of work will be done by 1 man . 1 woman and 1 boy in -

1813 . If 2 tables and 3 chairs cost Tk. 3500 and 3 tables and 2 chairs cost Tk. 4000, then how much does table cost?

1814 . If 2/3 of the number of women attending a certain dance is equal to 1/2 the number of men attending, what fraction of thoes attending are women?

1815 . If 20% of 200 equals 5.5% of 'x', what is the value of 'x' ?

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