Math - Money Word Problem

Question

Samantha, Maria, and Erica are three friends who each have part-time jobs. Last week, Samantha

earned twice as much money as Erica, while Maria earned $25 more than Samantha. The total earnings of the three friends last week was $450. How much money did each of them earn last week?

*Follow the 4 step method.

Answer 1

s=2e

e=s/2

m=25+s

s+e+m=450

s+s/2+s+25=450

2.5s =425

s= 425/2.5=$170 for samantha

e=s/2=170/2=$85 for erica

m=170+25=$195 for maria

170+85+195=450