Question

Jenny has saved $3,800 over the last 12 months. She saved either $250 or $350 a month. During the 12 month period, how many times did Jenny save $250 for the month?
A) 3
B) 4
C) 5

Answer 1

 5 months for it 5 times 250= 1250 

Answer 2

Solution:

we are given that

Jenny has saved $3,800 over the last 12 months. She saved either $250 or $350 a month.

we have been asked to find that

During the 12 month period, how many times did Jenny save $250 for the month?

Let Jenny saved x times $250, it Jenny saved (12-x) times $350, then we can write

$250x+(12-x)350=3800\\ \\ \text{Solve for x}\\ \\ 250x+12*350-350x=3800\\ \\ 100x=4200-3800\\ \\ 100x=400\\ \\ x=4$

Jenny saved 4 times $250