in Quantitative Aptitude retagged by
0 votes
0 votes

Two machines $M1$ and $M2$  are able to execute any of four jobs $P, Q, R$ and $S$. The machines can perform one job on one object at a time. Jobs $P, Q, R$ and $S$ take $30$ minutes, $20$ minutes, $60$ minutes and $15$ minutes each respectively. There are $10$ objects each requiring exactly $1$ job. Job $P$ is to be performed on $2$ objects. Job $Q$ on $3$ objects, Job $R$ on $1$ object and Job $S$ on $4$ objects. What is the minimum time needed to complete all the jobs?

  1. $2$ hours
  2. $2.5$ hours
  3. $3$ hours
  4. $3.5$ hours
in Quantitative Aptitude retagged by
11.9k points

Please log in or register to answer this question.

Welcome to GATE Civil Q&A, where you can ask questions and receive answers from other members of the community.
Top Users Sep 2022
  1. Arjun

    30 Points

  2. gatecse

    10 Points