835
Q:

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

A) 2:5 B) 3:5
C) 4:5 D) 5:4

Answer:   C) 4:5



Explanation:

Let the third number be x.

Then, first number = 120% of x =120x/100 = 6x/5  


Second number =150% of x = 150x/100 = 3x/2

Ratio of first two numbers = 6x/5 : 3x/2 = 12x : 15x = 4 : 5

Q:

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

Explanation:
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1 183
Q:

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

Explanation:
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5 5597
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

Explanation:
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6 660
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

Explanation:
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5 10941
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

Explanation:
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2 808
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

Explanation:
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0 470
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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3 407
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 & Explanation Answer: B) 28

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1 658