Question

what will be the least possible number of the plank ,if three pieces of timber 42m,49,and63m long have to be divided into planks of the some length?

Answer 1

Answer:

7

Step-by-step explanation:

we have to find the HCF of these three no.

first of two no. - 49, 42 .

49=42×1+7.

42=7×7+0.

H.C.F.= 7

now HCF of the third no. and the hcf we have find i.e 7

63=7×9+0.

hence the HCF is 7.

7 is the least possible no of planks .