Question

Wat have on the
Aashna, Saisha and Deepti can together make a painting in 5 days. Aashna alone can make the
same painting in 15 days and Deepti can do it 20 days. How long will Saisha alone take to do the
same amount of works​

Answer 1

Step-by-step explanation:

Let Saisha alone take x days.

Total days taken by Aashna, Saisha and Deepti = 5 days

Total work done by Aashna, Saisha and Deepti = 1/5

Work done by Aashna = 1/15

Work done by Deepti = 1/20

work done by Saisha = 1/x

Hence,

1/15 + 1/20 + 1/x = 1/5

1/x = 1/5 - 1/15 - 1/20

1/x = (12 - 4 - 3)/60

1/x = 5/60

1/x = 1/12

x = 12

Hence, Saisha alone will take 12 days to complete the work.