Question

soham can finish a task in 30 days. manu can do the same task in 20 days and Raghav in 24 days . If all three work together ,how long will they take to complete the task?

Answer 1

Soham = 30days
1 day's Soham work = 1 /30 work
Manu = 20 days
1 day's Manu work = 1 /20 work
Raghav = 24 days
1 day's Raghav work = 1 /24 work

1 day's Soham + Manu + Raghav work = 1 /30 + 1 /24 + 1 /20
= 4 + 5 + 6 / 120
= 15 / 120
= 3 / 40
Time taken to complete work when they all work together = 40 / 3
= 13 1 / 3 days

Answer 2

Answer:

sohan do in days=30

manu do works in days = 20

Raghav do work in days =24

LCM of 30,20,24 = 120

4+6+5÷120

=15÷120

=8 days