Question

1) A can do 1\4 of a work in 5 days while B can do 1/5 work in 6 days in how many days both do it together ?answer it quickly it is urgent I will mark as the brainliest

Answer 1

Step-by-step explanation:

A can do1/4 work in 5 days

So 1 work will take 5/1/4=20 days

B can do 1/5 that work in 6days

So 1 work will done in 6/1/5

=30 days

Now A and B will do that 1 work in

1/20+1/30 days

(30+20)/600

50/600

1/12

12 days

One more answer

A can do 1/4 of work in 5 days .

therfore to complet the work is 1/4 / 5/1 which is 1/4 x 1/5 = 20 days .

b can do 1/5 of work in 6days .

therfore to complete the work is 1/5 / 6/1 which is 1/5 x 1/6 = 30 days .

therfore 1/20 + 1/30 = 3/60 + 2/60 = 5/60

therfore 5/60 of work in one day or by ( simplified ) 1/12

therfore 1/12 of the total work in one day .

therfore it will take 12 days to complete the total number of work .

Please mark me brainliest....