Three pieces of timber, 42-m, 49-m and 63-m long, have to be divided into the planks of same length. What is the greatest possible length of each plank?
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Step-by-step explanation:
If we take HCF of all the given lengths (42, 49, 63) , it is 7 m. Hence we make planks of length 7m, then we get 6+7+9 = 22 planks of equal length 7 m. Now, Given that these given pieces of timber are divided into the planks of the same length
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