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SSC CHSL Squares and Square Roots — practice questions

Explore 22 free Squares and Square Roots questions in SSC CHSL 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 1–22 of 22.

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

A square tile has side 7 cm. Its area, 49, is called a:

  1. Square number
  2. Cube number
  3. Prime number
  4. Odd number
Show answer and solution

Correct answer: A. Square number

1. 49 is 7 multiplied by itself. 2. Numbers like 1, 4, 9, 16, 25 are of this kind. 3. They are square numbers. _Source: syllabus Mathematics, Chapter 6, Squares and Square Roots._

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32 lies between 25 and 36, so it is:

  1. A perfect cube
  2. Not a square
  3. A square of 5.5
  4. A square of 6
Show answer and solution

Correct answer: B. Not a square

1. 25 is 5 squared and 36 is 6 squared. 2. No natural number lies between 5 and 6. 3. So 32 is not a square number. _Source: syllabus Mathematics, Chapter 6, Squares and Square Roots._

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Which digit can never be the units digit of a square number?

  1. 7
  2. 1
  3. 6
  4. 9
Show answer and solution

Correct answer: A. 7

1. Squares end in 0, 1, 4, 5, 6 or 9. 2. They never end in 2, 3, 7 or 8. 3. So 7 is impossible. _Source: syllabus Mathematics, Chapter 6, Squares and Square Roots._

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More Quantitative Aptitude topics

MensurationMultiplicationNumber PropertiesSquare RootsSquares And RootsProfit and LossRatio and ProportionNumber System