Question

Subhash can copy 50 pages in 10 hours .Subhash and Prakash together can copy 300 pages in 40 hours in how much time can Prakash copy 30 pages?

Answer 1

Subhash copy 50pages=10hours.
Subhash and prakash copy 300pages=40hours.
The time taken by prakash for coping 30pages=?
: The time taken for coping 50pages=50÷10=5.
: The time taken for coping 300pages=300÷40=7.5.
: The time taken by prakash for coping 30pages=4hours (or) 6hours.

Answer 2

answer is 4 or 6hrstime