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unknown exponents MCQ Questions for Class 10

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Practice Questions

1 questions tagged with unknown exponents.

Question 1/1 Expert Mathematics Chapter 1: Real Numbers 3: Prime factorisation Class 10 Level 7

यदि \(2^2\times3^3\times5^2\) को \(2^a\times3^b\times5^c\) से भाग देने पर \(3^2\times5\) प्राप्त होता है, तो ((a,b,c)) क्या होगा?

If \(2^2\times3^3\times5^2\) divided by \(2^a\times3^b\times5^c\) gives \(3^2\times5\), what is ((a,b,c))?

Explanation opens after your attempt
Correct Answer

A. ((2,1,1))

Step 1

Concept

In division, exponents of the same base are subtracted.

Step 2

Why this answer is correct

\(2^{2-a}=2^0\) gives (a=2), \(3^{3-b}=3^2\) gives (b=1), and \(5^{2-c}=5^1\) gives (c=1).

Step 3

Exam Tip

If a prime is not visible in the result, treat its exponent as (0). चरण 1: भाग देने पर समान आधार की घातें घटती हैं। चरण 2: \(2^{2-a}=2^0\) से (a=2), \(3^{3-b}=3^2\) से (b=1), और \(5^{2-c}=5^1\) से (c=1)। चरण 3: परिणाम में जो अभाज्य नहीं दिखता, उसकी घात (0) मानें।

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