QQuestionMathematics
QuestionMathematics
"What is 30% of 420?
A. 14
B. 126
C. 140
D. None of these"
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Answer
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Step 1I'll solve this problem step by step using the specified LaTeX formatting guidelines:
Step 2: Understand the problem
To find 30% of 420, we need to multiply 420 by 30 / 100 (or 0.30).
Final Answer
Explanation: - To calculate a percentage of a number, multiply the number by the percentage expressed as a decimal - 30% = \frac{30}{100} = 0.30 - 420 \times 0.30 = 126 - This matches option B in the given choices
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