The cost of 5 sharpeners and 14 pencils is Rs.56 . What would be the cost of 15 sharpeners and 42 pencils? Options: A . &nbspRs.112 B . &nbspRs.224 C . &nbspRs.186 D . &nbspRs.164 E . &nbspNone of these

The cost of 5 sharpeners and 14 pencils is Rs.56 . What would be the cost of 15

Question

The cost of 5 sharpeners and 14 pencils is Rs.56 . What would be the cost of 15 sharpeners and 42 pencils?

Answer: Option E

let the cost of 1 sharpener be Rs.x and that of 1 pencil be Rs.y

5x+14y = 56

Multiplying both sides by 3, 15x + 42y = 56 * 3

= Rs. 168

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