Ratio and Proportion Practice Test 2

Question : 38 of 40

Marks: +1, -0

A, B and C can do a work in 20, 25 and 30 days respectively. They undertook to finish the work together for Rs. 2220, then the share of A exceeds that of B by:

Rs. 120
Rs. 180
Rs. 300
Rs. 600

Validate

Solution:

Ratio of shares of A, B, and C =

1/20:1/25:1/30

= 15 : 12 : 10
∴ A’s share = Rs.

2220 ×15/37

= Rs. 900
B’s share =

2220 × 12/37

= Rs. 720
Thus, the share of A exceeds that of B by Rs. (900 – 720) = Rs. 180.

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