The total monthly incomes of 16 men is $33600.
34 of them earn the same monthly income each. Each of the remaining men earns 4 times as much per month. Find the difference between the higher monthly income and the lower monthly income.
|
Men with lower incomes |
Men with higher incomes |
Total incomes |
Number |
12 |
4 |
|
Value |
1 u |
4 u |
|
Total value |
12 u |
16 u |
28 u |
Number of men with lower incomes
=
34 x 16
= 12
Number of men with higher incomes
= 16 - 12
= 4
Total monthly incomes
= 12 u + 16 u
= 28 u
28 u = 33600
1 u = 33600 ÷ 28 = 1200
Difference between the higher monthly income and the lower monthly income
= 4 u - 1 u
= 3 u
= 3 x 1200
= $3600
Answer(s): $3600