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5 pencils and 6 erasers cost is equal to 33 rupees and the cost a pencil and an eraser is 6 rupees, find out the cost of eraser.1. 12. 23. 34. 4 |
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Answer» Correct Answer - Option 3 : 3 Given : The cost of 5 pencils and 6 erasers is equal to 33 rupees The cost of a pencil and an eraser is equal to 6 rupees Calculations : Let the cost of a pencil be P Let the cost of an eraser be E According to the question 5P + 6E = 33 ....(1) P + E = 6 ....(2) Multiply equation (2) by 5 and solving equation (1) and (2) P = 3 and E = 3 ∴ The cost of the eraser is 3 rupees |
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