Problema Solution

In March, Rodney sold twice as many cars as Greg. In April, Rodney sold 5 fewer cars than he did in March, While Greg sold 3 more cars than he did in March . If they sold the same number of cars in April, how many cars did each sell in march?

Answer provided by our tutors

let


r = the number of cars Rodney sold in March


g = the number of cars Greg sold in March


In March, Rodney sold twice as many cars as Greg


r = 2g


In April, Rodney sold 5 fewer cars than he did in March, While Greg sold 3 more cars than he did in March and they sold the same number of cars in April:


r - 5 = g + 3


by solving the system of equations:


r = 2g


r - 5 = g + 3


we find


r = 16 cars


g = 8 cars


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Rodney sold 16 cars in March.


Greg sold 8 cars in March.