Question

A and B can do a piece of work in 24 days. B andC can do it in 30 days. C and

A can do it in 40 days. How long would they all take to do the same work ?​

Answer 1

Step-by-step explanation:

Let total work be 120 units (LCM of 30, 24 and 20). In 10 days, all three complete 75 units of work. Remaining 45 units can be completed by A in 18 days (at rate of 2.5 units per day).

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Answer 2

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