376 . Two outlets of a motor manufacturing company reported that revenue from outlet x in 2013 was down 11 percent from 2012. and revenue from outlet Y in 2013 were up 7 percent from 2012. If total revenue from outlet X & Y in 2013 was up 1 percent from 2012, what is the ratio of revenue from outlet X in 2012 revenue from outlet Y in 2012?

A. 1 : 2
B. 4: 5
C. 1 : 1
D. 3: 2
E. None of these

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Answer: Option E

Explanation:

Total out lets of X in 2012 = 11 - 1 = 10

and total out lets of Y in 2012 = 7 + 1 = 8

the ratio between two outlet , X : Y = 10 : 8 = 5 : 4

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377 . Two numbers differ by 5. If their product is 336, then the sum of the two numbers is -

A. 21
B. 37
C. 28
D. 51

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Answer: Option B

Explanation:

(x + y)² = (x - y)² + 4xy

= 5² + 4×336

= 25 + 1344

= 1369

∴(x + y) = 37

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378 . Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is:

A. 36
B. 48
C. 56
D. 64

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Answer: Option C

Explanation:

A : B
4x : 7x
Now 4 is added to each number

4x + 47x + 4 = 35⇒20x + 20 = 21x + 12⇒x = 8">4x + 47x + 4=35⇒20x + 20 = 21x + 12⇒x = 8

∴ Smaller number is 4 × 8 = 32
Larger number is 7 × 8 = 56

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Bangladesh Bank - Assistant Director - 2016

A. 2 :5
B. 3 : 5
C. 4 : 5
D. 6 : 7

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Answer: Option C

Explanation:

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শিল্প মন্ত্রণালয়ের অধীন বিসিআইসি'র সহকারী ব্যবস্থাপক-০৯.১২.২০১১

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

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Answer: Option B

Explanation:

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আশুগঞ্জ পাওয়ার স্টেশন কোম্পানী লিঃ (APSCL) || সহকারী প্রকৌশলী (মেকানিক্যাল ও ইলেকট্রিক্যাল এন্ড ইলেকট্রনিক্স) (27-09-2024) || 2024

A. 195 and 143
B. 190 and 143
C. 195 and 145
D. None of these

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Answer: Option A

Explanation:

Let the required numbers be 15.x and 11 x. Then their H.C.F. is x. So x = 13. The numbers are 15 x 13 and 11 x 13 i.e. 195 and 143.

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Bangladesh Bank - Assistant Director - 2014

A. 27
B. 33
C. 49
D. 55

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Answer: Option B

Explanation:

Two numbers are 3x,5x.

3x-9/5x-9=12/23

=>23(3x-9)=12(5x-9)

=>69x-207=60x-108

=>9x=99

x=33

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

A. 24
B. 26
C. 28
D. 32

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Answer: Option C

Explanation:

Hints : The difference between the two numbers remain the same 1 : 2 = 2 : 4 ( maintain same difference between the two ratio)

Increase is 1 unit

so, 1 unit 7.

Biggest number is 4 units, hence it is 7 × 4 = 28

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384 . Two number are in the ratio 3:5 . If 9 is subtracted form each , the new numbers are in the ratio 1223. The smaller number is

A. 27
B. 33
C. 49
D. 55

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Answer: Option B

Explanation:

Let the two numbers be 3x and 5x respectively.
According to the given problem,
(3x - 9)/(5x - 9) = 12/23
= > 23 × (3x - 9) = (5x - 9) × 12
= > 69x - 207 = 60x - 108
= >9x = 207 - 108
= >x = 99/9 = 11
Therefore, the two numbers are (3 × 11) = 33 and (5 × 11) = 55.
The smaller number is 33.

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

A. 7 meters
B. 14 meters
C. 10 meters
D. 6 meters

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Answer: Option C

Explanation:

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২৮ তম বিসিএস প্রিলিমিনারি টেস্ট (28-11-2008)

A. 5 min
B. 10 min
C. 60 min
D. 20 min
E. None of these

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Answer: Option C

Explanation:

2 taps can fill in 20 minutes = 2/5th

1 tap can fill in 20 minutes = 1/5th.

remaining portion to be filled up = 1 - 2/5 = 3/5.

1/5th can be filled by 1 tap in 20 mins

3/5th can be filled by 1 tap in 20x3 mins = 60 minutes. (ans)

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Jamuna Bank Ltd - Probationary Officer - 2009

A. 5 minutes
B. 10 minutes
C. 60 minutes
D. 20 minutes

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Answer: Option C

Explanation:

Each tap takes 2x20*5/2 = 100 minutes to fill the tank.

In the first 20 minutes, the taps filled 2/5th of the tank. The remaining 3/5th of the tank will take a single tap (3/2)*20*2 = 60 minutes.

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388 . Two groups of tourist each have 60 people. If three-fourth (i. e. 75%) of the first group & two-third of the 2nd group baord buses to travel to a museum, how many more people of the first group board buses compared to the second group?

A. 5
B. 6
C. 10
D. 15

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Answer: Option A

Explanation:

75% of 60 is 45.

2 /3 of 60 is 40.

The first group has 45-40= 5 more people board buses compared to the second group.

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389 . Two-fifths of the socks in box are red, one-third is blue and the rest are green. What is the ratio of the green socks to the blue socks?

A. 4 : 5
B. 5 : 6
C. 6 : 7
D. 7 : 8

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Answer: Option A

Explanation:

Red socks = 2/5 of total

Blue socks = 1/3 of total

Rest are green, so green socks

= 1 - 2/5 + 1/3

= 1 - (6 + 5)/15

= 1 - 11/15

= (15 - 11)/15

= 4/15 of total

Hence, ratio of green to blue socks

= 4/15 : 1/3

= 4 : 5

So, the correct answer choice is option 1

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390 . Two-fifths of the socks in box are , one-third is blue, and the rest are green. What is the ratio of the green socks to the blue socks?

A. 4:5
B. 5:6
C. 6:7
D. 7:8
E. None of these

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Answer: Option A

Explanation:

Red socks = 2/5 of total

Blue socks = 1/3 of total

Rest are green, so green socks

= 1 - 2/5 + 1/3

= 1 - (6 + 5)/15

= 1 - 11/15

= (15 - 11)/15

= 4/15 of total

Hence, ratio of green to blue socks

= 4/15 : 1/3

= 4 : 5

So, the correct answer choice is option 1

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377 . Two numbers differ by 5. If their product is 336, then the sum of the two numbers is -

378 . Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is:

379 . Two numbers are respectively 20% and 50% mor than a third number. The ratio of the two numbers is :

380 . Two numbers are respectively % and 50% more than a third 20 number. The ratio of the first two numbers is

381 . Two numbers are in the ratio of 15:11. If their H.C.F is 13, find the numbers.

382 . Two numbers are in the ratio 3:5. If 9 is subtracted from each, the new numbers are in the ratio 12: 23. the smaller number is:

Two numbers are 3x,5x.

383 . Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is :

384 . Two number are in the ratio 3:5 . If 9 is subtracted form each , the new numbers are in the ratio 1223. The smaller number is

385 . Two men, starting at the same point, walk in opposite directions for 4 meters, turn left and walk another 3 meters. What is the distance between them ?

386 . Two identical taps fill 2/5 of a tank in 20 minutes.when one of the taps goes dry n how many minutes will the remaining one tap fill the rest of the tank?

387 . Two identical tapes fill 2/5 of a tank in 20 minutes. When one of the taps goes dry in how many minutes will the remaining one tap fill the rest of the tank?

388 . Two groups of tourist each have 60 people. If three-fourth (i. e. 75%) of the first group & two-third of the 2nd group baord buses to travel to a museum, how many more people of the first group board buses compared to the second group?

389 . Two-fifths of the socks in box are red, one-third is blue and the rest are green. What is the ratio of the green socks to the blue socks?

390 . Two-fifths of the socks in box are , one-third is blue, and the rest are green. What is the ratio of the green socks to the blue socks?

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