Yellow stripe Q

vishubn · Posted: Fri Oct 03, 2008 11:39 pm Post subject: Yellow stripe Q

A solid yellow stripe is to be painted in the middle of a certain highway. If 1 gallon of
paint covers an area of p square feet of highway, how many gallons of paint will be
needed to paint a stripe t inches wide on a stretch of highway m miles long? (1 mile =
5,280 feet and 1 foot = 12 inches)
A. (5,280 mt) / 12p
B. (5,280 pt) / 12m
C. (5,280 pmt) / 12
D. (5,280)(12m) / pt
E. (5,280)(12p) / mt

vishu

stop@800 · Posted: Sat Oct 04, 2008 2:45 am Post subject:

Azntycoon · Posted: Sat Oct 04, 2008 10:21 am Post subject:

What's the OA? I'm getting D

i) Convert feet into inches & miles:

feet to "t" iches = 12/t
feet to "m" miles = 5280m

ii) Calculate formula knowing that the gallons unit is derived by = sq feet * (gallon/sq feet)

(12/t)(5280m)*(1/p)
((12m)(5280)/t)/p
(12m)(5280)/tp

Morgoth · Posted: Sat Oct 04, 2008 3:18 pm Post subject: Re: Yellow stripe Q

vishubn · Posted: Sat Oct 04, 2008 5:47 pm Post subject:

OA is A!

Vishu

thans

Azntycoon · Posted: Sun Oct 05, 2008 6:09 am Post subject:

thanks Morgoth... careless mistake on my part in setting up the Q.