Cole, Brandon and Riordan went shopping. Cole and Brandon spent a total of $296. Cole and Riordan spent $668 altogether. Riordan spent 4 times as much as Brandon.
- How much did Brandon spend?
- How much did Cole spend?
(a)
Amount that Cole spent = C
Amount that Brandon spent = B
Amount that Riordan spent = R
C + R = 668
C + B = 296
B = 1 u
R = 4 x 1 u = 4 u
Amount that Riordan spent more than Brandon
= 4 u - 1 u
= 3 u
3 u = 668 - 296
3 u = 372
1 u = 372 ÷ 3 = 124
Amount that Brandon spent
= 1 u
= $124
(b)
Amount that Cole spent
= 296 - 124
= $172
Answer(s): (a) $124; (b) $172