Wipro Company Numerical Ability Arithmetic

A certain store sells all magazines at one price and all books at another price. On Monday the store sold 12 magazines and 10 books for a total of $38.00, and on Tuesday the store sold 20 magazines and 15 books for a total of $60.00. At this store, how much less does a magazine sell for than a book?
A. $0.25
B. $0.50
C. $0.75
D. $1.00
E. $l.25

Read Solution (Total 1)

Option B
12x+10y=38
20x+15y=60

multiply eq 1 by 5 and eq 2 by 3

60x+50y=38*5
60x+45y=60*3

subtracting 1 from 2

5y=190-180
y=2

therefore
x=18/12=1.5

difference in price =0.5
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