railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Time and Work Work Efficiency

X and Y together can do a piece of work in 10 days, X is 40% more efficient than Y. X alone will complete 35% of the same work in:

1

6 days

2

8 days

3

9 days

4

5 days

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