Question

160 is what percent of the sum of 100 and 120 and 160

Answer 1

42.105%

1) Let's first add thosse numbers up: 100 +120+160 =380

2) Now we can write out the following ratio, to find out what percentage is equivalent to 160 out of that 380:

`\begin{gathered} 160----x \\ 380----100 \\ (160)/(380)=(x)/(100) \\ 380x=16000 \\ (380x)/(380)=(16000)/(380) \\ x=42.105\% \end{gathered}`

Note that we had to cross multiply that.

3) Hence, the answer is 160 is approximately 42.105% of 380