Math Destroyer Question

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

marymatthews

Membership Revoked
Removed
10+ Year Member
Joined
Mar 4, 2010
Messages
379
Reaction score
0
Points
0
Advertisement - Members don't see this ad
For Math Destroyer Test 5, Question 1 and 2 (page 71)....
for question 1, you add the two times together in order to get the total time they work together
However, for question 2, you do not not add the two times together....
both questions state that the two people work together
So how come you dont add the two times together for question 2?
Thanks
 
Also. could someone please explain the solution to Question 5 from Test 5? The one with the two perpendicular lines....
Thanks
 
Top Bottom