It takes Cynthia 11 hours to proof a chapter of Hawkes Learning Systems Intermediate Algebra book and it takes Mandy 5 hours. How long would it take them working together?
2 Answers
Oct 27, 2017
Together it would take
Explanation:
Cynthia can proof
Mandy can proof
Together in one hour they could proof
Oct 27, 2017
Explanation:
Cynthia took 11 hours to proof a chapter. So, in 1 hour she proofs 1/11 th part of that chapter.
Mandy took 5 hours to proof that chapter. So, in 1 hour he proof 1/5 th part of that chapter.
So, in 1 hour they proof together =
Total time taken by them to complete proofs the chapter