The total monthly incomes of 28 men is $239200.
37 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 |
12 |
16 |
|
Value |
1 u |
5 u |
|
Total value |
12 u |
80 u |
92 u |
Number of men with lower incomes
=
37 x 28
= 12
Number of men with higher incomes
= 28 - 12
= 16
Total monthly incomes
= 12 u + 80 u
= 92 u
92 u = 239200
1 u = 239200 ÷ 92 = 2600
Difference between the higher monthly income and the lower monthly income
= 5 u - 1 u
= 4 u
= 4 x 2600
= $10400
Answer(s): $10400