Question

the Length breadth and the height of a room are 8250 CM 675 cm and 450 CM respectively find the longest tape which can measure dimension of room exactly

Answer 1

take hcf of (8250, 675,450)=75 cm
so , length of the longest tape is 75 cm

Answer 2

finding the longest tape is to find the hcf of all these

so .

8250 = 2 × 3 × 5 × 5 × 5 × 11

675 = 3 × 3× 3× 5 × 5

450 = 2 × 3× 3× 5 × 5


so , hcf = 3 × 5 × 5

= 75 cm

tape must be of 75 cm