How did you get the answer?
Take 7 times 4, multiply by 10, add 7 times 7.
24.53%
13 24.53%
Take 7 times 5, multiply by 10, subtract 7 times 3.
20.75%
11 20.75%
Take 7 times 5 and say it's "about 350".
5.66%
3 5.66%
Double 47 three times, subtract 47.
0%
0 0%
Imagine a piece of paper and do cross-multiplication with your imaginary pencil.
15.09%
8 15.09%
The above, with physical paper and pencil. (wow)
0%
0 0%
Use Google Calculator. Extra points if you typed it into Toolbar and used autocomplete suggestions.
1.89%
1 1.89%
Use a physical calculator.
1.89%
1 1.89%
Hover over the spoiler. (Shame on you.)
15.09%
8 15.09%
Other (specify)
15.09%
8 15.09%
Total: 10 vote(s) 100%