RRB Junior Engineer Stage 1 Model Papers 5

Question : 1 of 100

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Pratibha is thrice as efficient as Sonia and is therefore able to finish a piece of work in 60 days less than Sonia. Pratibha and Sonia can individually complete the work respectively in

30, 60 days
60, 90 days
30, 90 days
40,120 days

Validate

Solution:

Let Pratibha can finish the work in x days then, Sonia can finish the same work in 3x days
According to question

3x – x = 60

2x = 60 ⇒ x = 30

Pratibha and Sonia can individually complete the work in 30 days and 90 days respectively

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