4
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:   D) 1 : 2 : 4

Explanation:
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

Explanation:

1 220
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

Explanation:

5 5847
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

Explanation:

6 668
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

Explanation:

6 11086
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

Explanation:

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

Explanation:

0 474
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

Explanation:

1 664
Q:

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