Question

1. Minti can do a piece of work in 12 days. Minti and Rinki together can finish the work in 8 days.

Find: (a) the number of days in which Rinki alone can finish the work.
(b) the work left if Rinki alone works on it for 4 days.​

Answer 1

Minti - 12 days

Minti & Rinki - 8 days

Use Formula 3

time= (12 * 8) / (12 -8)

time = 96 / 4

time for Rinki alone = 24 Days

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Rinki alone for 4 days will leave 20 days of work to be done.

Explanation: