Question

Three men - Prakash, Qasim and Roger - working together, complete a job in 5 hours less than the time taken by Prakash alone, in 1 hour less than the time taken by Qasim alone, and in one-third the time taken by Roger working aloneThe time taken (in minutes) by Prakash and Qasim to finish the work together is​

Answer 1

Answer:

1 hour 30 minutes.

Step-by-step explanation:

It is the right answer.