Penelope received $70 more pocket money than Eva each month. Both of them spent $140 per month and saved the rest. After a few months, Penelope saved $1600 but Eva only saved $1250.

1. What was Penelope's monthly pocket money?
2. Eva wanted to save a total of $2500. How many more months did she need in order to save this amount?

(a)
Total amount that Penelope saved more than Eva
= 1600 - 1250
= $350

Number of months taken for each of them to save their amounts
= 350 ÷ 70
= 5

Amount that Penelope saved each month
= 1600 ÷ 5
= $320

Penelope's monthly pocket money
= 320 + 140
= $460

(b)
Eva's monthly pocket money
= 460 - 70
= $390

Amount that Eva saved each month
= 390 - 140
= $250

Remaining amount that Eva needed to save
= 2500 - 1250
= $1250

Number of more months that Eva needed to save the remaining $1250
= 1250 ÷ 250
= 5

Answer(s): (a) $460; (b) 5