The total monthly incomes of 14 men is $48000.
57 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 |
10 |
4 |
|
Value |
1 u |
5 u |
|
Total value |
10 u |
20 u |
30 u |
Number of men with lower incomes
=
57 x 14
= 10
Number of men with higher incomes
= 14 - 10
= 4
Total monthly incomes
= 10 u + 20 u
= 30 u
30 u = 48000
1 u = 48000 ÷ 30 = 1600
Difference between the higher monthly income and the lower monthly income
= 5 u - 1 u
= 4 u
= 4 x 1600
= $6400
Answer(s): $6400