Question

sam can do a work in 10 days while John can do with in 20 days in how many days will they both together complete it​

Answer 1

Step-by-step explanation:

No.of days taken by Sam to do the work=10

Work done by Sam in 1 day=1/10

No.of days taken by John to do the work=20

Work done by John in 1 day=1/20

So,

Work done by both of them in 1 day=1/10+1/20

=(1+1)/20

=2/20

=1/10

Therefore,

No.of days taken to do the whole work=1/(1/10)

=1×10

= 10 days..

Answer 2

Answer:

good night dear sister kal tumhara hbd hai kal jaldi so jao kal jaldi uthna agar mai pehla wish mahi kar payungi so hbd in advance