Will, Sam and Rachel share a sum of money. Will's share is half of what Sam and Rachel receive. Sam's share is
815 of the sum of money. Rachel receives $21 less than Will.
- What fraction of the sum of money is Will's share?
- How much is the sum of money?
Will |
Rachel |
Sam |
Total |
1x5 |
2x5 |
3x5 |
7 |
8 |
15 |
5 u |
2 u |
8 u |
15 u |
(a)
The total amount that Will, Sam and Rachel had is repeated. Make the total amount the same. LCM of 3 and 15 is 15.
Will's shareTotal amount =
515 =
13 (b)
Amount that Rachel had less than Will
= 5 u - 2 u
= 3 u
3 u = 21
1 u = 21 ÷ 3 = 7
Total amount that Will, Sam and Rachel had
= 15 u
= 15 x 7
= $105
Answer(s): (a)
13; (b) $105