The total monthly incomes of 16 men is $69000.
38 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 |
6 |
10 |
|
Value |
1 u |
4 u |
|
Total value |
6 u |
40 u |
46 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 + 40 u
= 46 u
46 u = 69000
1 u = 69000 ÷ 46 = 1500
Difference between the higher monthly income and the lower monthly income
= 4 u - 1 u
= 3 u
= 3 x 1500
= $4500
Answer(s): $4500