Concept-wise Practice

powers-of-ten MCQ Questions for Class 10

powers-of-ten se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with powers-of-ten.

Question 1/1 Medium Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 19

यदि \(\frac{p}{q}\) सबसे सरल रूप में है और \(q=2^4\times5^4\), तो दशमलव प्रसार किस स्थान पर समाप्त होगा?

If \(\frac{p}{q}\) is in lowest form and \(q=2^4\times5^4\), at which decimal place will the expansion terminate?

Explanation opens after your attempt
Correct Answer

B. चौथे स्थान परAt the fourth place

Step 1

Concept

The denominator (24\times54=\(2\times5\)4=104).

Step 2

Why this answer is correct

So the decimal terminates after (4) places.

Step 3

Exam Tip

Exam tip: Equal powers of (2) and (5) directly form a power of (10). चरण 1: हर (24\times54=\(2\times5\)4=104) है। चरण 2: इसलिए दशमलव (4) स्थानों पर समाप्त होगा। चरण 3: परीक्षा सुझाव: बराबर घातों में हर सीधे (10) की घात बन जाता है।

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