PSLE Oscar and Harry were paid a total of $1790 for a job they did. Oscar was paid $890 more than Harry.
- How much was Harry paid for the job?
- Oscar and Harry were paid based on the number of days they worked. Oscar worked 2 times as many days as Harry. Harry was paid $20 less than Oscar per day. How many days did Oscar work?
(a)
Amount that Harry was paid = 1 u
Amount that Oscar was paid = 1 u + 890
Total amount paid
= 1 u + 1 u + 890
= 2 u + 890
2 u + 890 = 1790
2 u = 1790 - 890
2 u = 900
1 u = 900 ÷ 2 = 450
Amount that Harry was paid
= 1 u
= $450
(b)
Amount that Oscar was paid
= 1 u + 890
= 450 + 890
= $1340
Oscar worked 2 times as many days as Harry.
2 sets of Oscar's salary = $1340
1 set of Oscar's salary
= 1340 ÷ 2
= $670
1 set of Harry's salary = $450
Difference between each set of Oscar's and Harry's salaries
= 670 - 450
= $220
Number of days in 1 set
= 220 ÷ 20
= 11
Number of days that Oscar worked
= 2 x 11
= 22
Answer(s): (a) $450; (b) 22