Question

A ,B and C can do a piece of work in 8 days , 12 days and 15 days respectively. How long will they take to finish if they work together ?​

Answer 1

Answer:

Take the total amount of time taken as 1/X.

Step-by-step explanation:

So the total time would be:

X/8 + X/12 + X/15

Take LCM;

10X+15X+8X divided by 120.

33X/120=11/40.

Since we took 1/X so the answer would be the reciprocal of 33/120.

we would get 40/11 as the answer.

Therefore to finish the work they would take 40/11 days.

I hope this is the answer you are looking for.

Answer 2

Answer:

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