Question

A and B can do a peice of work in 18 days B and c in 24 days and A and c in 36 days how much time will a Alone take to finish tha work​

Answer 1

Resposta:

15

Explicação passo-a-passo:

A+B=18

B+C=24

A+C=36

From b+c=24 we have that C can be whitten as C=24-B. So,

A+C=36 -> A+(24-B)=36 -> A-B=36-24 ->A-B=12

And,

A+B=18 (1)

A-B=12 (2)

Doing (1) +(2)

2*A=30

A=30/2= 15