The total monthly incomes of 14 men is $22000.
57 of them earn the same monthly income each. Each of the remaining men earns 3 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 |
3 u |
|
Total value |
10 u |
12 u |
22 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 + 12 u
= 22 u
22 u = 22000
1 u = 22000 ÷ 22 = 1000
Difference between the higher monthly income and the lower monthly income
= 3 u - 1 u
= 2 u
= 2 x 1000
= $2000
Answer(s): $2000