Question

Ram takes 6 hours to types 32 pages. Shaam takes 5 hours to type 40 pages. In how many hours they will type 110 pages together?

Answer 1

No of pages typed by ram in 6 hours =32
No of pages typed by ram in 1 hour=32/6=16/3

No of pages typed by sham in 5 hours=40
No of pages typed by sham in 1 hour=40/5=8

Together they can do in 1 hour =16/3 + 8
= 40/3

Time taken together to type 110 pages =110×3/40
=33/4
=8 1/4 hour (eight one by four)

Answer 2

Ram and Shaam will type $110$ pages together in $8$ hours $15$ minutes.

Explanation :

Number of pages typed by Ram in $1$ hour $= 32/6 = 16/3$.

Number of pages typed by Shaam in $1$ hour $= 40/5 = 8$.

Number of pages typed by both in $1$ hour $= 16/3 + 8 = 40/3$.

∴ Time taken by both to type $110$ pages $= 110$ × $3/40$ hours.

⇒  $8$ hours $15$ minutes.

Therefore, Ram and Shaam will type $110$ pages together in $8$ hours $15$ minutes.

#SPJ2