Question

Last month, John spent 7 hours at the library. If Jim spent 3 times as many hours at the library as John, which number sentence shows how many hours Jim spent at the library last month?

Answer 1

if jim spent 3 times as many hours in the library, jim spent 21 hours in library last month

Answer 2

John spent hours in library =7 hours
Jim spent hours in library =3(7)
number of hours spent by Jim was=21 (it means Jim spended 3 times more than john