David earns $120 per day. He receives and extra $30 for every 6 days of work.
- How much will he earn altogether after working for 6 days?
- How much will he earn altogether after working for 51 days?
(a)
Amount that David earns after working for 6 days
= 120 x 6 + 30
= 720 + 30
= $750
(b)
Number of sets of 6 days in 51 days
= 51 ÷ 6
= 8 r 3
Amount that David earns for working 8 sets of 6 days
= 8 x 750
= $6000
Amount that David earns after working 3 days
= 3 x 120
= $360
Total amount that David earns after working for 51 days
= 6000 + 360
= $6360
Answer(s): (a) $750; (b) $6360