Varun and Ashish together can paint a hall in 3 days. Varun alone can paint it in 7 days. In how many days can Ashish alone paint 4 such halls?
Given:
Varun and Ashish together can paint 1 hall in 3 days.
Varun alone can paint 1 hall in 7 days.
The task is to determine how many days Ashish alone can paint 4 such halls.
Formula Used:
Time =
Solution:
Total work = LCM of 3 and 7 = 21 units
Combined rate =
Varun’s rate = = 3
Ashish alone = 7- 3 = 4
Work for 4 halls = 4 × 21 units = 84 units
Time required = = 21 days
Ashish alone can paint 4 halls in 21 days.
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