Problem Solving

If a printer can print 2 pages of text per second, then, at this rate, approximately how many minutes will it take to print 5,000 pages of text?
(A) 4
(B) 25
(C) 42
(D) 250
(E) 417

Vishu
ps.(cramya .... i havent added the OA deliberately)... i get a answer diffetn from OA

An optometrist charges $150 per pair for soft contact lenses and $85 per pair for hard contact lenses. Last week she sold 5 more pairs of soft lenses than hard lenses. If her total sales for pairs of contact lenses last week were $1,690, what was the total number of pairs of contact lenses that she sold?
(A) 11
(B) 13
(C) 15
(D) 17
(E) 19

Again !! same issue!!
wanted to know IMO soo that i can stop referrin the material

Vish

1) IMO C

2 pages in 1sec
5000 pages in 2500 secs

2500/60 = 41.67 or 42 mins approx

2) IMO B

s-soft contact lenses
h-hard contact lenses

s = 5+h

150s+85h=1690
150(5+h)+85h=1690
h=4
s=9
Total = 13

Whats your answer and OA?
Also whats the source for these questions?

Damn ! first one ! its thje worng OA and second one i goofed it up big time !!

thanks mals24

vishu