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Q:

The sum of three numbers is 79. If the ratio of the first number to the second number is 4 : 7 and that of the second number to the third number is 4 : 5, then the second number is:

 

A) 12 B) 28
C) 15 D) 35

Answer:   B) 28



Explanation:
Subject: Ratios and Proportions - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
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Two numbers are in the ratio 7 : 5. On diminishing each of them by 40, the ratio becomes 27 : 17. The difference between the numbers is:

 

A) 25 B) 50
C) 75 D) 40
 
Answer & Explanation Answer: B) 50

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A earns ₹640 per day and works for 8 hours. B earns ₹360 per day and works for 6 hours. The ratio of per day wages of A to that of B is:

 

A) 16 : 9 B) 4 : 5
C) 5 : 4 D) 9 : 16
 
Answer & Explanation Answer: A) 16 : 9

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Q:

What is the ratio between the fourth proportional of 3, 4, 9 and the mean proportional between 2 and 98 ?

 

A) 7:8 B) 7:6
C) 8:7 D) 6:7
 
Answer & Explanation Answer: D) 6:7

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Q:

What is the ratio of the mean proportional between 14.4 and 3.6 and the third proportional of 5 and 4?

 

A) 9:4 B) 8:5
C) 4:9 D) 5:8
 
Answer & Explanation Answer: A) 9:4

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6 11088
Q:

A bag contains coins of Rs. 1.50 paise, and 25 paise in the ratio 2 : 3 : 5. If the total value of these coins is Rs. 228, then the number of 50 paise coins in that bag was

 

A) 96 B) 124
C) 112 D) 144
 
Answer & Explanation Answer: D) 144

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2 831
Q:

The length of two parallel chords of a circle of radius 5 cm are 6 cm and 8 cm in the same side of the centre. The distance between them is

 

A) 1.5 cm B) 2 cm
C) 1 cm D) 3 cm
 
Answer & Explanation Answer: C) 1 cm

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0 475
Q:

A can do half of a piece of work in 1 day, whereas B can do full. B can do half the work as C in 1 day. The ratio of their efficiencies of work

 

A) 2 : 4 : 1 B) 2 : 1 : 4
C) 4 : 2 : 1 D) 1 : 2 : 4
 
Answer & Explanation Answer: D) 1 : 2 : 4

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If 2145 : x :: 3003 : 42, then the value of y so that x : 2508 :: y : 11704, is:

 

A) 156 B) 96
C) 212 D) 140
 
Answer & Explanation Answer: D) 140

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