Question

Siddharth can do a piece of work in 18 day and Varun can do it in 21 days if both of them work together II II how much time will be they take to finish it?​

Answer 1

Answer:

9  9/13

Step-by-step explanation:

Given,

Siddharth can do a piece of work in 18 day

Siddharth=1/18 days

Varun can do it in 21 days

Varun=1/21

if both of them work together In how much time will be they take to finish it?

Siddharth+Varun=1/18+1/21

​Siddharth+Varun=7+6/126

Siddharth+Varun=13/126

Siddharth+Varun=9 9/13