Question

A and B individually can do a work in 8 hours and 12 hours respectively. A worked first for 2 hours and then left how long will b take to finish the remaining part of the work. (answer : 9hours)​

Answer 1

Answer:

A and B individually can do a work in 8 hours and 12 hours respectively. A worked first for 2 hours and then left how long will b take to finish the remaining part of the work. (answer : 9hours)

Step-by-step explanation:

A = 8 hrs

B = 12 hrs

Let total work be 24 units ( LCM of 8, 12)

One day work -

A = 3 units

B = 2 units

A+B = 5 units

Time taken = 24/5 hrs

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Sudipt Pal Mithai

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