Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
average {2/5, 1/4 * 2/5}
average {2/5, 1/4 * 2/5}
Natural Language
Math Input
Extended Keyboard
