Question

Ajith and salam do 20% of work in first 3 days. Then ajith returns because of some physical problem.Then salam alone finishes the remaining work in 20 days.How many days will ajith alone take to do the whole work?

Answer 1

Answer:

37.5

Step-by-step explanation:

Given Ajith and salam do 20% of work in first 3 days. Then ajith returns because of some physical problem.Then salam alone finishes the remaining work in 20 days.How many days will ajith alone take to do the whole work?

Remaining 80% of work in 20 days will be 100 – 20

So 100 % of work will be done in 20 /80 x 100 = 25 days

Both Ajit and Salman worked for 3 days which is 20%

Now Salman;s one day’s work will be 100/25 = 4%

So Salman’s three days work will be 4 x 3 = 12%

So Ajit’s three day’s work will be 20 – 12 = 8%

So 8% of work done by Ajit will be 3 days

100 % work done will be equal to 100 x 3 / 8

                                   = 300 /8 = 37 1/2

Ajith will complete the whole work in 37 1 / 2 days