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Cost of one dozen Gel pen is rupees 144 and the cost of 9 ball pens is rupees 81 find the ratio of (1)the cost of a Gel pen to the cost of a ball pen be the cost of a (2) Gel pen to the cost of 4 ball pen |
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Answer» Answer: Step-by-step EXPLANATION: 1) cost of 1 GEL pen = 144/12= rupees 12 cost of 1 BALL pen = 81/9= rupees 9 ratio = 12 :9 or 4: 3 |
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