The total monthly incomes of 16 men is $75600.
38 of them earn the same monthly income each. Each of the remaining men earns 3 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 |
6 |
10 |
|
Value |
1 u |
3 u |
|
Total value |
6 u |
30 u |
36 u |
Number of men with lower incomes
=
38 x 16
= 6
Number of men with higher incomes
= 16 - 6
= 10
Total monthly incomes
= 6 u + 30 u
= 36 u
36 u = 75600
1 u = 75600 ÷ 36 = 2100
Difference between the higher monthly income and the lower monthly income
= 3 u - 1 u
= 2 u
= 2 x 2100
= $4200
Answer(s): $4200