Three pieces of timber 48 m, 56 m and 72 m long have to be divided into planks of the same length, What is the greatest possible length of each plank ? Choose the correct choice:
A) 8 m
B) 4 m
C) 2 m
D) 6 m
E) None of these
8 mnswer   Greatest possible length of each plank = H.C.F of 48, 56, 72 = 8 m   Correct Option: 8 m
<result>A</result>
Three pieces of timber 48 m, 56 m and 72 m long have to be divided into planks of the same length, What is the greatest possible length of each plank ?