Tiffany received $70 more pocket money than Rachel each month. Both of them spent $130 per month and saved the rest. After a few months, Tiffany saved $1750 but Rachel only saved $1260.

1. What was Tiffany's monthly pocket money?
2. Rachel wanted to save a total of $2340. How many more months did she need in order to save this amount?

(a)
Total amount that Tiffany saved more than Rachel
= 1750 - 1260
= $490

Number of months taken for each of them to save their amounts
= 490 ÷ 70
= 7

Amount that Tiffany saved each month
= 1750 ÷ 7
= $250

Tiffany's monthly pocket money
= 250 + 130
= $380

(b)
Rachel's monthly pocket money
= 380 - 70
= $310

Amount that Rachel saved each month
= 310 - 130
= $180

Remaining amount that Rachel needed to save
= 2340 - 1260
= $1080

Number of more months that Rachel needed to save the remaining $1080
= 1080 ÷ 180
= 6

Answer(s): (a) $380; (b) 6