Daniel received $2 from his uncle in the 1st week of school and $4 in the 2nd week. Each week, he receives $2 more than the week before.
- How much money did he received in the 14th week?
- In which week did he receive $26?
(a)
Amount that Daniel received on 1st Week = $2
Amount that Daniel received on 2nd Week = $13
Formula:
Amount received each week = 2 + (Week number - 1) x $2
Amount received on Week 14
= 2 + (14 - 1) x 2
= 2 + 13 x 2
= 2 + 26
= $28
(b)
Week number that Daniel received $26
= [(26 - 2) ÷ 2] + 1
= (24 ÷ 2) + 1
= 12 + 1
= 13
Answer(s): (a) $28; (b) 13