ISRO Administrative Officer 2008 Question 18

Question 18

P, when working alone, can complete a work in 30 days. He can complete the same work in 20 days when working with Q. Working with Q and R, P can complete the same work in 10 days. In how many days can Q and together do the same work?

Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free


Register with


Boost your Prep!

Download App