Question

Chase plays the piano and the cello. For every 2 hours he practices the piano, he practices the cello for 4 hours. If he practiced the piano for 7 hours last week, how many hours did he spend practicing the cello

A.14
B. 8
C. 56
C. 28

Answer 1

p/c=2/4=1/2

7/c=1/2

14/c=1

c=14

So Chase practiced the Cello for 14 hours.

Answer 2

the answer is a)
14
multiply by two throughout