Time and Work Practice Test 3 with solutions

Question : 12 of 40

Marks: +1, -0

Nilam can do a piece of work in 20 days. Rani is 25% more efficient than Nilam. The number of days taken by Rani to do the same piece of work is:

25 days
18 days
16 days
15 days

Validate

Solution:

51. Ratio of efficiency of Nilam and Rani = 100 : 125 = 4 : 5
Hence, ratio of their time taking = 5 : 4
Therefore, number of days taken by Rani to complete the work =

{20}/5 × 4

= 16 days

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