A man has four copper rods whose lengths are 52 m, 65 m, 78 m, 91 m, respectively. This man wants to cut pieces of same length from each of four rods. what is the least number of total pieces if he is to cut without any wastage ?

A man has four copper rods whose lengths are 52 m, 65 m, 78 m, 91 m, r

1.	A man has four copper rods whose lengths are 52 m, 65 m, 78 m, 91 m, respectively. This man wants to cut pieces of same length from each of four rods. what is the least number of total pieces if he is to cut without any wastage ?
A.	23
B.	24
C.	22
D.	20
Answer» D. 20