Question

Jack spends 1 1/2times as long on his homework as Jill.

Last week, Jill spent 6 3/4hours doing homework.
How long did Jack spend doing homework?

Answer 1

10.125 hours

Explanation:

We can convert 6 3/4 hours into minutes by multiplying it by 60

this equals 405. Jill spent 405 minutes doing homework.

Jack spent 1 1/2 times as long on his homework as Jill (1 1/2 is equivalent to 1.5)

We can multiply 1.5 x 405 and get 607.5 which means Jack spent 607.5 minutes doing homework

607.5 minutes is equivalent to 10.125 hours.