Cathy saved $10 in Week 1. She saved $20 in Week 2 and $30 in Week 3. She continued saving in this pattern.
- In which week did she save $120?
- How much would she save in Week 13?
(a)
The week that Cathy saved $120
= 120 ÷ 10
= 12
(b)
Amount that Cathy saved in Week 13
= 13 x 10
= $130
Answer(s): (a) 12; (b) $130