Rael had 217 pens more than Lucy. Given that they have a total of 505 pens,
- how many pens did Lucy have?
- how many pens did Rael have?
(a)
Number of pens that Rael that = 1 u + 217
Number of pens that Lucy had = 1 u
Total number of pens
= 1 u + 217 + 1 u
= 2 u + 217
2 u + 217 = 505
2 u = 505 - 217
2 u = 288
1 u = 288 ÷ 2 = 144
Number of pens that Lucy had
= 1 u
= 144
(b)
Number of pens that Rael had
= 1 u + 217
= 144 + 217
= 361
Answer(s): (a) 144; (b) 361
