Reported Question / Answer
correct ansr is 10. Explanation: Usha completes a work on 25 days. Asha 25% more efficient then Usha, then time taken by Asha will be =25-25/100*25=75/4 days. let the time taken to finish the work be x days. Then we are given: => 4x/75+5/25= 1 => x= 15 days and number of days Asha worked alone= 15-5=10
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