The total monthly incomes of 14 men is $105600.
27 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 |
4 |
10 |
|
Value |
1 u |
4 u |
|
Total value |
4 u |
40 u |
44 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 + 40 u
= 44 u
44 u = 105600
1 u = 105600 ÷ 44 = 2400
Difference between the higher monthly income and the lower monthly income
= 4 u - 1 u
= 3 u
= 3 x 2400
= $7200
Answer(s): $7200