The total monthly incomes of 14 men is $138000.
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 |
6 |
8 |
|
Value |
1 u |
5 u |
|
Total value |
6 u |
40 u |
46 u |
Number of men with lower incomes
=
37 x 14
= 6
Number of men with higher incomes
= 14 - 6
= 8
Total monthly incomes
= 6 u + 40 u
= 46 u
46 u = 138000
1 u = 138000 ÷ 46 = 3000
Difference between the higher monthly income and the lower monthly income
= 5 u - 1 u
= 4 u
= 4 x 3000
= $12000
Answer(s): $12000