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1 dozen needle of same size weight 18 grams then the weight of 20 same size needle is |
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Answer» Answer: Step-by-step explanation: 1 DOZEN = 12 so 12 NEEDLES = 18 gram means 1 needle = 18/12 =1.5 so WEIGHT of 20 Needles of same size will be of weight = 20 × 1.5 = 30 |
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