Question

What will be the least possible number of the planks, if three pieces of timber 42 m, 49 m and 63 m long have to be divided into planks of the same length? (a) 5 (b) 6 (c) 7 (d) none of these?

Answer 1

Answer:

Heya mate

answer is 7

find hcf of the numbers.

then got your answer.

I hope it will help you.

Answer 2

Answer:

HCF of 42, 49 and 63 = 7

.°. Answer = c) 7