Question

jill spends 1 and a half as long on his homework as jill. last week jill spent 8 and a half hous on her homework. how long did jack spend on his homework

Answer 1

8 hours
half again as much
What's preventing you from doing this? Where are you stuck?

Answer 2

it 7 hrs

Answer 3

mind blanc but thankyou and wich 7 or 8?

Answer 4

7

Answer 5

Whoops. 8½ hours. and then half again as much. It is NOT 7 hours.

1½ is GREATER than 1. What is half of 8½?

Answer 6

4 and 1/4

Answer 7

...

Answer 8

Perfect: Jill 8½ and Jack 8½ + 4¼ = ??

Answer 9

LCM don't forget

Answer 10

sorry worng thing

Answer 11

what if jack spent 22hrs and 3 quarters on homework so bhow long did jill spend

Answer 12

Previous Problem: Jill 8½ Jack 8½ + 4¼ = 12¾

NOTICE that 12¾ = 1.5 * 8½
NOTICE also that 8½ = 12¾ / 1.5

Can you now solve the new problem?

Answer 13

thankyou