Wendy received $60 more pocket money than Sabrina each month. Both of them spent $140 per month and saved the rest. After a few months, Wendy saved $1600 but Sabrina only saved $1360.

1. What was Wendy's monthly pocket money?
2. Sabrina wanted to save a total of $2380. How many more months did she need in order to save this amount?

(a)
Total amount that Wendy saved more than Sabrina
= 1600 - 1360
= $240

Number of months taken for each of them to save their amounts
= 240 ÷ 60
= 4

Amount that Wendy saved each month
= 1600 ÷ 4
= $400

Wendy's monthly pocket money
= 400 + 140
= $540

(b)
Sabrina's monthly pocket money
= 540 - 60
= $480

Amount that Sabrina saved each month
= 480 - 140
= $340

Remaining amount that Sabrina needed to save
= 2380 - 1360
= $1020

Number of more months that Sabrina needed to save the remaining $1020
= 1020 ÷ 340
= 3

Answer(s): (a) $540; (b) 3