McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
3. The Quadratic Formula and the Discriminant
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Exercise 52 Page 197

Find 60 % of the given numbers.

D

Practice makes perfect
Start with finding 75 % of 88.

88*75/100=66 Now let's find 60 % of the numbers given in the options.

Number 60 %
100 100*60/100=60
101 101*60/100=60.6
108 108*60/100=64.8
110 110*60/100=66
We can see that 75 % of 88 is the same as 60 % of 110. The correct answer is D.

Alternative Solution

Exam tip

On an exam you do not need to try the options in order. If you find the correct number, you do not need to do the rest of the calculations. Think about which option you want to start with, and based on the result choose an appropriate option to try next.