The total monthly incomes of 14 men is $81000.
27 of them earn the same monthly income each. Each of the remaining men earns 5 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 |
5 u |
|
Total value |
4 u |
50 u |
54 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 + 50 u
= 54 u
54 u = 81000
1 u = 81000 ÷ 54 = 1500
Difference between the higher monthly income and the lower monthly income
= 5 u - 1 u
= 4 u
= 4 x 1500
= $6000
Answer(s): $6000