At Sharma Stationers every pen costs ₹p and every notebook costs ₹n. Which expression gives the total of the bill?

Question

Accepted Answer

₹(5p + 2n + 20). Amounts: 3p,\ 2n,\ 2p and 4 × 5 = 20. Like terms: 3p + 2p = 5p. Total = ₹(5p + 2n + 20). Adding 4 and 5 instead of multiplying gives 9; leaving out the red pens gives 3p.

At Sharma Stationers every pen costs ₹p and every notebook costs ₹n. Which expression gives the total of the bill?

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