QQuestionMathematics
QuestionMathematics
How can you find 40% of 150 using mental math? Explain.
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Answer
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Step 1:I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Step 2:: Understand the Problem
This means finding $$\frac{40}{100}$$ of 150.
We need to calculate 40% of 150.
Step 3:: Break Down the Percentage
40% can be simplified to $$\frac{40}{100}$$, which reduces to $$\frac{2}{5}$$.
Step 4:: Mental Math Strategy
To find $$\frac{2}{5}$$ of 150, we can:
- First find \frac{1}{5} of 150 by dividing 150 by 5 - Then multiply that result by 2
Step 5:: Calculate \frac{1}{5} of 150
\frac{1}{5} \times 150 = 30
Step 6:: Multiply by 2 to Get 40%
30 \times 2 = 60
Final Answer
Mental Math Tip: Breaking percentages into simpler fractions and using division/multiplication can make calculations easier.
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