A stationary shop sells pencils and erasers. A pencil costs Rs. 15 and an eraser costs Rs. 10. If Farwa purchase 8 pencils and 14 erasers representation of the total cost using a matrix is ____?
- [8 14] × [15; 10]
- [8 14] + [15; 10]
- [8 14] ÷ [15; 10]
- None of these
Explanation
Items = [8 14]
Costs = [15; 10]
Total cost = [8 14] [15]
[10]
= 8(15) + 14(10)
= 120 + 140 = 260
Matrix representation:
[8 14] × [15; 10] = [260]
Last verified on 08-02-2026
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