Question

Paula is draining her fish tank. when she starts draining it, the height of the water is 33 cm. six mintues later, the height of the water is 15 cm.

If the water continues to drain at this rate until it is empty, how many total minutes will it take Paula to drain her fish tank?

Answer 1

yes the answer is 11 minutes

Answer 2

33-15=18cm of water was gone in 6 min. so it’s draining 3cm/min.
She still has 15cm left to drain at 3cm/min. Is 5 more min. Total=11min.

Or 33 cm divided by 3 min=11min