easy one.

[uptowngirl92]

There are how many hours between x minutes past 12 noon and 8:10 p.m. of the same day, where x < 60?

(A) 490-x/60
(B) 480-x/60
(C) 470-x/60
(D) 60 (60 – x + 7)
(E) 60 (60 – x + 17)

Could somebody explainthe workings?OA:A

[ssmiles08]

I would think the simplest way of doing this is if you take x = 0

so then it would be 12:00 to 8:10PM ---> that would be exactly 8 hours and 10 minutes

Choice (A) gives you 490 + 0/60 = 490 minutes.

you convert that into hours; ~8.166 hours

.1667 hours * 60 = 10 minutes

which gives you 8 hours and 10 minutes.