If two pipes function simultaneously, a reservoir will be filled in 12 hours. One pipe fills the reservoir 10 hours faster than the other. How many hours will the second pipe take to fill the reservoir?
Match the items on the right to the items on the left.
STEP 1
STEP2
STEP 3
STEP 4
STEP 5
STEP 6
Let the slower pipe fill the reservoir in ‘a’ hours
Faster pipe fills it in ‘a – 10’ hours.
Let the slower pipe fill the reservoir in ‘a’ hours
Faster pipe fills it in ‘a – 10’ hours.
Value of a can’t be 4 as (a – 10) will be negative
