At a shop, Usha paid $38 for 1 eraser and 2 stamps. The eraser cost $2 more than each stamp.
- How much is 1 stamp?
- How much is 1 eraser?
(a)
Cost of 1 stamp = 1 u
Cost of 2 stamps = 2 u
Cost of 1 eraser = 1 u + 2
Total cost of 1 eraser and 2 stamps
= 2 u + 1 u + 2
= 3 u + 2
3 u + 2 = 38
3 u = 38 - 2
3 u = 36
1 u = 36 ÷ 3 = 12
Cost of 1 stamp
= 1 u
= $12
(b)
Cost of 1 eraser
= 1 u + 2
= 12 + 2
= $14
Answer(s): (a) $12; (b) $14