Sabrina has 6 erasers fewer than Risa but 49 erasers more than Fred. The three children have 293 erasers altogether.
- How many erasers does Fred have?
- How many erasers does Risa have?
(a)
Number of erasers Risa has = 1 u
Number of erasers Sabrina has = 1 u - 6
Number of erasers Fred has = 1 u - 6 - 49 = 1 u - 55
Total number of erasers
= 1 u + 1 u - 6 + 1 u - 55
= 3 u - 61
3 u - 61 = 293
3 u = 293 + 61
3 u = 354
1 u = 354 ÷ 3 = 118
Number of erasers that Fred has
= 1 u - 55
= 118 - 55
= 63
(b)
Number of erasers that Risa has
= 1 u
= 118
Answer(s): (a) 63; (b) 118
