Multiple Choice Questions

Three piece of timber 42 m 49 m and 63 m long have to be divided into planks of the same length What...........

Quantitative Aptitude (PCS) LCM, HCF

Three piece of timber 42 m, 49 m and 63 m long have to be divided into planks of the same length. What is the greatest possible length of each plank?

7 m

14 m

42 m

63 m

The maximum possible length = (HCF of 42, 49, 63) = 7

Hence, option 1 is the correct answer.

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