Question

Alexis typed 54 words in one minute, which was 120% of what Tasha typed. How many words did Tasha type in one minute?

Answer 1

45 words

Explanation:

From the percentage,decimal and fraction topic, you'll know that 120% is 1.2 in decimal form. Now we can write an equation:
54 words = 120% of Tasha
`54 = 1.2*Tasha`
Then just divide both sides by `1.2` to get:
`Tasha=45` words

If you do forget how to do this though, you can think of it like this:
120% = 54 words, therefore:
20% = 9 words, therefore:
100% = 45 words