PSLE
Elijah and Henry were paid a total of $2480 for a job they did. Henry was paid $1270 less than Elijah.

1. How much was Henry paid for the job?
2. Elijah and Henry were paid based on the number of days they worked. Elijah worked 3 times as many days as Henry. Elijah was paid $4 more than Henry per day. How many days did Elijah work? 

(a)
Amount that Henry was paid = 1 u
Amount that Elijah was paid = 1 u + 1270

Total amount paid
= 1 u + 1 u + 1270
= 2 u + 1270

2 u + 1270 = 2480
2 u = 2480 - 1270
2 u = 1210

1 u = 1210 ÷ 2 = 605

Amount that Henry was paid
= 1 u
= $605

(b)
Amount that Elijah was paid
= 1 u + 1270
= 605 + 1270
= $1875

Elijah worked 3 times as many days as Henry.

3 sets of Elijah's salary = $1875

1 set of Elijah's salary
= 1875 ÷ 3
= $625

1 set of Henry's salary = $605

Difference between each set of Elijah's and Henry's salaries
= 625 - 605
= $20

Number of days in 1 set
= 20 ÷ 4
= 5

Number of days that Elijah worked
= 3 x 5
= 15

Answer(s): (a) $605; (b) 15