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Subjects
Class 9MathematicsNumber SystemsExponentsExpertLevel 5
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What is the value of (2^8+5^3)?

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Answer and explanation

Correct answer: 381

First evaluate the powers: \(2^8=256\) and \(5^3=125\). Therefore, \(2^8+5^3=256+125=381\), so option B is correct. In the exam, calculate the powers before performing addition or subtraction.

Related tags

ExponentsNumber SystemsPowersArithmetic Operations

Frequently asked questions

What is the correct answer to this question?

381

Why is this the correct answer?

First evaluate the powers: \(2^8=256\) and \(5^3=125\). Therefore, \(2^8+5^3=256+125=381\), so option B is correct. In the exam, calculate the powers before performing addition or subtraction.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.

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10 more MCQs
  1. 1If A={x:x is prime and 10<x<30}, which is its roster form?
  2. 2If 0.2020020002... has no fixed repetition, what type of number is it?
  3. 3If 0.3030030003... has no fixed repetition, what type of number is it?
  4. 4If (x=\sqrt{11}) then what is (x^2+5)?
  5. 5If (x=\sqrt{3}) then what is (x^2+x^2)?
  6. 6If (x=\sqrt{2}), what is (x^2)?
  7. 7What is the value of (2^3)?
  8. 8What is the value of (5^2)?
  9. 9What is the value of (10^2)?
  10. 10What is the value of (3^2)?
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