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Class 9MathematicsNumber SystemsExponentsHard
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What is the value of (14^2+5^3)?

Answer and explanation

Correct answer: 321

Evaluate the powers first: 14^2 = 196 and 5^3 = 125. Therefore, 14^2 + 5^3 = 196 + 125 = 321, so option B is correct. Exam tip: calculate exponents before addition; do not confuse 14^2 with 14 × 2.

Related tags

Number SystemsExponentsPowersArithmeticMathematicsClass 9 Mcq
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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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