Question

a alone can do a piece of work in 6 days b alone can do it in 12 days in how many days will A &B together do the same work ​

Answer 1

Answer:

4 days

Step-by-step explanation:

Part of work done by A in one day = 1/6

Part of work done by B in one day = 1/12

Part of work done in one day if both of them work together = 1/6+1/12

                                                                                                   = (2+1)/12

                                                                                                   = 3/12 = 1/4

So, no of days needed if both of them work together = 4 days

Hope it helps........

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