Penelope received $70 more pocket money than Wendy each month. Both of them spent $140 per month and saved the rest. After a few months, Penelope saved $1520 but Wendy only saved $1240.

1. What was Penelope's monthly pocket money?
2. Wendy wanted to save a total of $2480. How many more months did she need in order to save this amount?

(a)
Total amount that Penelope saved more than Wendy
= 1520 - 1240
= $280

Number of months taken for each of them to save their amounts
= 280 ÷ 70
= 4

Amount that Penelope saved each month
= 1520 ÷ 4
= $380

Penelope's monthly pocket money
= 380 + 140
= $520

(b)
Wendy's monthly pocket money
= 520 - 70
= $450

Amount that Wendy saved each month
= 450 - 140
= $310

Remaining amount that Wendy needed to save
= 2480 - 1240
= $1240

Number of more months that Wendy needed to save the remaining $1240
= 1240 ÷ 310
= 4

Answer(s): (a) $520; (b) 4