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Subjects
Class 10MathematicsReal NumbersDecimal expansion of rational numbersHardLevel 21
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Which denominator will not give exactly (4) decimal places if the fraction is in lowest form?

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Answer and explanation

Correct answer: (125)

Step 1: For exactly (4) places, the larger exponent must be (4). Step 2: (16=2^4), (625=5^4), and (80=2^4\cdot 5) give exactly (4) places. (125=5^3) gives only (3) places. Step 3: For exact places, the larger exponent must match the required number.

Related tags

Exact-Decimal-PlacesDenominator-TestTerminating-DecimalMcq

Frequently asked questions

What is the correct answer to this question?

(125)

Why is this the correct answer?

Step 1: For exactly (4) places, the larger exponent must be (4). Step 2: (16=2^4), (625=5^4), and (80=2^4\cdot 5) give exactly (4) places. (125=5^3) gives only (3) places. Step 3: For exact places, the larger exponent must match the required number.

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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  7. 7Which of the following fractions will give a terminating decimal?
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