Asher and Perry went shopping with a total amount of $385. They had $315 left after shopping. Asher's remaining money was 3 times the amount he paid for. Perry's remaining money was 6 times the amount he had spent.

1. How much did Perry spend?
2. How much did Perry bring along for shopping?

	Asher	Perry	Total
Before	4 u	7 p	385
Change	- 1 u	- 1 p	- 70
After	3 u	6 p	315

(a)
Amount that Asher and Perry spent
= 385 - 315
= $70

Amount that Asher and Perry spent
= 1 u + 1 p

1 u + 1 p = 70
1 u = 70 - 1 p --- (1)

Amount that Asher and Perry had left
= 3 u + 6 p 

3 u + 6 p = 315
3 u = 315 - 6 p --- (2)

Make u the same.

(1) _{x 3}
3 u = 210 - 3 p --- (3)

(3) = (2)
210 - 3 p = 315 - 6 p 
6 p - 3 p = 315 - 210

3 p = 105

1 p = 105 ÷ 3 = 35

Amount that Perry spent = $35

(b)
Amount that Perry brought along
= 7 p
= 7 x 35
= $245

Answer(s): (a) $35; (b) $245