Question

Noah solved three math problems. The first problem took him 1 minute. The second problem took him 30% longer than the first problem, and the third problem took him 50% longer than the second problem. How long did it take Noah to solve all three problems?

Answer 1

60 seconds * 1.30 = 78. 78 seconds * 1.5 = 117 seconds.

117+78+60= 225 seconds.

225 seconds is your answer! :)
Hopefully this helped!