David earns $110 per day. He receives and extra $70 for every 5 days of work.
- How much will he earn altogether after working for 5 days?
- How much will he earn altogether after working for 54 days?
(a)
Amount that David earns after working for 5 days
= 110 x 5 + 70
= 550 + 70
= $620
(b)
Number of sets of 5 days in 54 days
= 54 ÷ 5
= 10 r 4
Amount that David earns for working 10 sets of 5 days
= 10 x 620
= $6200
Amount that David earns after working 4 days
= 4 x 110
= $440
Total amount that David earns after working for 54 days
= 6200 + 440
= $6640
Answer(s): (a) $620; (b) $6640