Question

There were five pieces of cloth of lengths 15m, 21, 36m, 42m, 48m. But all of them could be measured in whole units of a measuring rod. What could be the largest length of the tod? ​

Answer 1

Answer:

Once you get rid of the extraneous details, this question is asking for a common factor of each of these numbers. The way I would go about this is start with fifteen and try out each of its factors and take it from there. As it only has four (1, 15, 3, & 5) it was quite an easy process. I would start at the largest factor but it was obvious 5 could not be the answer so I began with three.

15/3=5

21/3=7

36/3=12

42/3= 14

48/3=16

All of these are whole numbers, all of these are factors of the previous numbers, any larger number could not work, the rod is 3m.

Step-by-step explanation: