Bobby, Jack and Jane share a sum of money. Bobby's share is half of what Jack and Jane receive. Jack's share is
815 of the sum of money. Jane receives $15 less than Bobby.
- What fraction of the sum of money is Bobby's share?
- How much is the sum of money?
Bobby |
Jane |
Jack |
Total |
1x5 |
2x5 |
3x5 |
7 |
8 |
15 |
5 u |
2 u |
8 u |
15 u |
(a)
The total amount that Bobby, Jack and Jane had is repeated. Make the total amount the same. LCM of 3 and 15 is 15.
Bobby's shareTotal amount =
515 =
13 (b)
Amount that Jane had less than Bobby
= 5 u - 2 u
= 3 u
3 u = 15
1 u = 15 ÷ 3 = 5
Total amount that Bobby, Jack and Jane had
= 15 u
= 15 x 5
= $75
Answer(s): (a)
13; (b) $75