The total monthly incomes of 14 men is $102000.
27 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 |
4 |
10 |
|
Value |
1 u |
3 u |
|
Total value |
4 u |
30 u |
34 u |
Number of men with lower incomes
=
27 x 14
= 4
Number of men with higher incomes
= 14 - 4
= 10
Total monthly incomes
= 4 u + 30 u
= 34 u
34 u = 102000
1 u = 102000 ÷ 34 = 3000
Difference between the higher monthly income and the lower monthly income
= 3 u - 1 u
= 2 u
= 2 x 3000
= $6000
Answer(s): $6000