Question

what is the length of the longest tape which can be used to measure exactly 1 metre 75 cm 4 metre 50 cm and 6 metre 50 CM?​

Answer 1

175,450,650

175=5*5*7

450=5*5*2*3*3

650=5*13*5*2

LCM,

5*5*2*3*3*7*13

40950cm