Question

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The cost of 3 CDs is Rs. 6y. And the cost of 5 DVDs is Rs. 10x. If you buy 7 CDs and 9 DVDs, how much money will you spend?

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Answer 1

Answer:

3CD =6y

so y= 2

Similarly,

5 Dvd= 10x

so x=2

Cost of 7 Cd = 2×7=14

9 DVD=9×2=18