The total monthly incomes of 28 men is $76000.
47 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 |
16 |
12 |
|
Value |
1 u |
5 u |
|
Total value |
16 u |
60 u |
76 u |
Number of men with lower incomes
=
47 x 28
= 16
Number of men with higher incomes
= 28 - 16
= 12
Total monthly incomes
= 16 u + 60 u
= 76 u
76 u = 76000
1 u = 76000 ÷ 76 = 1000
Difference between the higher monthly income and the lower monthly income
= 5 u - 1 u
= 4 u
= 4 x 1000
= $4000
Answer(s): $4000