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Q22. A certain store sells all maps at one price and all books at another price. On Monday the store sold 12 maps and 10 books for a total of Rs.38.00, and on Tuesday the store sold 20 maps and 15 books for a total of Rs 60.00. At this store, how much less does a map sell for than a book?



Your Answer
A

(a)  Rs 0.25

Correct Answer
B

(b) Rs 0.50

Your Answer
C

(c)  Rs 0.75

Your Answer
D

(d) Rs 1.00


Solution

The correct option is D

(b) Rs 0.50


12m+10b = 38;

20m+15b=60;

Solving  these we get m=1.5; b=2;

Difference = Rs 0.5

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