Problema Solution
a sink is filling at the rate of 1 liter in 6 seconds. IT is draining at the rate of 1 liter in 11 seconds. how long from the time it is empty will take the sink to fill, if its capacity is 8 liters?
Answer provided by our tutors
speed of filling 1/6
speed of draining is 1/11
1/6 - 1/11 = 8/ x
5 /66 = 8/x
x = 66 * 8/ 5
= 105.6secs