The length of the longest tape in cm which can be used to measure exactly, the length 2m; 400cm; and 5m is:	Options
A) 130
B) 500
C) 100
D) 400
E) 200
The three lengths in cm are 200, 400&amp; 500.   HCF of 200, 400&amp; 500 is 100   Hence, the answer is 100 cm.   ANSWER:100
<result>C</result>
The length of the longest tape in cm which can be used to measure exactly, the length 2m; 400cm; and 5m is: