Problem Solving

A certain business produced x rakes each month form November through February and shipped x/2 rakes at the beginning of each month from March through October. The business paid no storage costs for the rakes from November through February, but it paid storage costs of $0.10 per rake each month from March through October for the rakes that
had not been shipped. In terms of x, what was the total storage cost, in dollars, that the business paid for the rakes for the 12 months form November through October?
A. 0.40x
B. 1.20x
C. 1.40x
D. 1.60x
E. 3.20x

Ans Is D?
what's the OA

I guess March to oct is 8 months * 2x =16X rakes
16x *0.10

1.60x

Are you sure they didn't produce 2x and ship x?

Sorry. I corrected it in bold...

Imagine that x=10.

You know that they produced 40 rakes during the 4 months.

The question mentions that the company sells x/2 (or 5) rakes at the begining of each month.

Therefore, in March, they had to pay storage on 35 rakes. April, 30. May, 25... etc. Storage costs are 10%. Total paid is:

.1*(35+30+25+20+15+10+5+0) = $14.

Solve for y:
y*10 = 14
y = 1.4

Answer: C

Yes you got the right answer. thanks.