PSLE
Julian and Flynn were paid a total of $3100 for a job they did. Julian was paid $1100 more than Flynn.

1. How much was Flynn paid for the job?
2. Julian and Flynn were paid based on the number of days they worked. Julian worked 2 times as many days as Flynn. Flynn was paid $25 less than Julian per day. How many days did Julian work? 

(a)
Amount that Flynn was paid = 1 u
Amount that Julian was paid = 1 u + 1100

Total amount paid
= 1 u + 1 u + 1100
= 2 u + 1100

2 u + 1100 = 3100
2 u = 3100 - 1100
2 u = 2000

1 u = 2000 ÷ 2 = 1000

Amount that Flynn was paid
= 1 u
= $1000

(b)
Amount that Julian was paid
= 1 u + 1100
= 1000 + 1100
= $2100

Julian worked 2 times as many days as Flynn.

2 sets of Julian's salary = $2100

1 set of Julian's salary
= 2100 ÷ 2
= $1050

1 set of Flynn's salary = $1000

Difference between each set of Julian's and Flynn's salaries
= 1050 - 1000
= $50

Number of days in 1 set
= 50 ÷ 25
= 2

Number of days that Julian worked
= 2 x 2
= 4

Answer(s): (a) $1000; (b) 4