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IBPS RRB Office Assistant Squares and Square Roots — practice questions

Explore 27 free Squares and Square Roots questions in IBPS RRB Office Assistant Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

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Squares and Square Roots questions and exercises with answers

Showing questions 1–27 of 27.

The square root of 7744 is:Read the answer and worked solution →If 1120 / √x = 80, then x = ?Read the answer and worked solution →What is the square root of 5476?Read the answer and worked solution →What is the square root of 108900?Read the answer and worked solution →Find the square root of 15625.Read the answer and worked solution →A square tile has side 7 cm. Its area, 49, is called a:Read the answer and worked solution →32 lies between 25 and 36, so it is:Read the answer and worked solution →Which digit can never be the units digit of a square number?Read the answer and worked solution →A number ends in 9. Its square ends in:Read the answer and worked solution →A square number ends in 6. The number squared ends in 4 or:Read the answer and worked solution →Two consecutive triangular numbers add up to a:Read the answer and worked solution →How many non-square numbers lie between 7 squared and 8 squared?Read the answer and worked solution →The sum of the first 6 odd numbers, 1+3+5+7+9+11, equals:Read the answer and worked solution →25 can be written as 1+3+5+7+9. This shows 25 is a:Read the answer and worked solution →Using 23 = 20 + 3, the square of 23 is:Read the answer and worked solution →Using 42 = 40 + 2, the square of 42 is:Read the answer and worked solution →3, 4 and 5 satisfy 9 + 16 = 25. Such a set is called a:Read the answer and worked solution →Which set is a Pythagorean triplet?Read the answer and worked solution →The Pythagorean triplet with 8 as its smallest member is:Read the answer and worked solution →Finding a number whose square is known is called finding the:Read the answer and worked solution →A perfect square has two integral square roots; the root symbol denotes only the:Read the answer and worked solution →Subtracting 1, 3, 5, ... from 81 reaches 0 at the 9th step. So the square root of 81 is:Read the answer and worked solution →256 = 2x2x2x2x2x2x2x2. Pairing the factors, its square root is:Read the answer and worked solution →48 = 2x2x2x2x3 has one unpaired 3. The smallest number to multiply 48 by to get a perfect square is:Read the answer and worked solution →The square root of 6400 is:Read the answer and worked solution →90 = 2 x 3 x 3 x 5. Since 2 and 5 are unpaired, 90 is:Read the answer and worked solution →A right triangle has hypotenuse 5 cm and one side 3 cm. The third side squared is:Read the answer and worked solution →

Worked practice questions

The square root of 7744 is:

  1. 98
  2. 92
  3. 88
  4. 82
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Correct answer: C. 88

1. The number ends in 4, so its square root ends in 2 or 8. 2. Since 7744 is between 80² = 6400 and 90² = 8100, the root is in the 80s. 3. Testing 88: 88² = 7744, so the square root is 88. _Source: RRB Group D (RRC) PYQ, held 27-10-2013, Q.85._

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If 1120 / √x = 80, then x = ?

  1. 125
  2. 196
  3. 225
  4. 336
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Correct answer: B. 196

1. Rearrange: √x = 1120 / 80 = 14. 2. Square both sides: x = 14². 3. So x = 196. _Source: RRB Group D CEN-02/2018 PYQ, Q.50._

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What is the square root of 5476?

  1. 84
  2. 76
  3. 74
  4. 66
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Correct answer: C. 74

1. The number ends in 6, so its square root ends in 4 or 6. 2. Since 70² = 4900 and 75² = 5625, the root lies between 70 and 75. 3. Test 74: 74² = 5476. _Source: RRB Group D CEN-02/2018 PYQ, Q.55._

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More Quantitative Aptitude topics

Square RootsSimple InterestMensurationPercentagesShortcutsSimple & Compound InterestSquares And RootsMultiplication