Thread: Percentage Problem!

Q: The length of a rod is 0.45m. It expands to a length of 0.47m.

Find the expansion as a percentage of its original length.

??? Please help if possible.

It seems too simple, thanks though!

I think percentage increase in length

=[change in length/orig. length] X100

so, it should be=[0.02/0.45] X 100

am I correct??

Ans- 4.44%

Thank you so much sumit2009, you've just confirmed the answer for me.

I thought it was 4.44%

nice one!