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Question

A pen cost rupees 3𝑥. The total cost of 5y such pens is ___ rupees

A
15y
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B
15x
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C
15xy
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D
3xy
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Solution

The correct option is C 15xy

Total cost of 5y pens = cost of 1 pen ✕ 5y

= 3x ✕ 5y

= 15xy


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