Neave received $4 from his aunt in the 1st week of school and $6 in the 2nd week. Each week, he receives $2 more than the week before.
- How much money did he received in the 17th week?
- In which week did he receive $26?
(a)
Amount that Neave received on 1st Week = $4
Amount that Neave received on 2nd Week = $16
Formula:
Amount received each week = 4 + (Week number - 1) x $2
Amount received on Week 17
= 4 + (17 - 1) x 2
= 4 + 16 x 2
= 4 + 32
= $36
(b)
Week number that Neave received $26
= [(26 - 4) ÷ 2] + 1
= (22 ÷ 2) + 1
= 11 + 1
= 12
Answer(s): (a) $36; (b) 12