How many decimal places will the decimal expansion of (\frac{3^2\cdot 5}{2^6\cdot 3^2\cdot 5^4}) have?
Answer and explanation
Correct answer: (6)
Step 1: The numerator (3^2\cdot 5) cancels from the denominator. Step 2: The reduced denominator is (2^6\cdot 5^3). The larger exponent is (6), so the decimal terminates after (6) places. Step 3: Look for the larger exponent only after cancellation.
Frequently asked questions
What is the correct answer to this question?
(6)
Why is this the correct answer?
Step 1: The numerator (3^2\cdot 5) cancels from the denominator. Step 2: The reduced denominator is (2^6\cdot 5^3). The larger exponent is (6), so the decimal terminates after (6) places. Step 3: Look for the larger exponent only after cancellation.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Decimal expansion of rational numbers.
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