Question

Rohan can finish a task alone in 24 days. Shreya can do

Q: Answer-Rohan can finish a task alone in 24 days. Shreya can do 50% of the same task alone in 12 days. If Sh...

ATQ, Time taken by Shreya to do the entire task 12 0.5 24 days Time taken by Shreya and Tanya to do the entire task together 9 0.6 15 days Let the total work be 120 units LCM 24, 24, and 15 So, the combined efficiency of Shreya and Tanya 120 15 8 unitsday Efficiency of Shreya 120 24 5 unitsday Efficiency of Tanya 8 - 5 3 unitsday Efficiency of Rohan 120 24 5 unitsday So, required time taken 120 5 3 120 8 15 days

50% of the same task alone in 12 days. If Shreya and Tanya work together, they can complete 60% of the task in 9 days. Find the time taken by Rohan and Tanya to finish the task together.

A 15

B 20

C 18

D 35

E none of these

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Rohan can finish a task alone in 24 days. Shreya can do

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