Time and Work Practice Test 4 with solutions

Question : 26 of 40

Marks: +1, -0

Era is 75% more efficient than Esha. Find the time taken by Era to do a given work if Esha can do the same work in 25 days.

$15 2/3$ days
14 days
$15 1/2$ days
$14 2/7$ days
None of these

Validate

Solution:

Let the time taken by Era = 100 days.
Time taken by Esha = 175 days
When Esha takes 175 days, then Era takes 100 days.
When Esha takes 25 days, then Era takes

{100}/{175} × 25

days.
=

{100}/7

14 2/7

days

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