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Squares, Cubes & Roots questions for bank exams

Squares, cubes and roots drills build instant recall of squares to 50, cubes to 30 and their roots. Plutomonk has 1,040 Squares, Cubes & Roots questions in Prelims and Mains sets of 10, each with a worked solution. They are useful for IBPS PO, SBI PO, IBPS Clerk, SBI Clerk, IBPS RRB and RBI Assistant.

Practise Squares, Cubes & Roots freeToday's Daily Challenge
Quick tip

A square ending in 5 is easy: 65² = (6 × 7) followed by 25, which is 4225.

Squares, Cubes & Roots sample questions with answers

These are from the first Prelims and Mains sets. Try each question before you open the solution.

Q1. √9216 = ?

  1. 94
  2. 106
  3. 96
  4. 95
  5. 97
Show answer and solution

Answer: C. 96

96 × 96 = 9216, so √9216 = 96.

Q2. 65² = ?

  1. 4225
  2. 4275
  3. 4235
  4. 4125
  5. 4252
Show answer and solution

Answer: A. 4225

For numbers ending in 5: 6 × 7 = 42, then append 25 → 4225.

Q3. 5³ = ?

  1. 125
  2. 100
  3. 115
  4. 130
  5. 225
Show answer and solution

Answer: A. 125

5³ = 5 × 5 × 5 = 125.

Q4. ∛4096 = ?

  1. 16
  2. 18
  3. 14
  4. 19
  5. 17
Show answer and solution

Answer: A. 16

16³ = 4096, so the cube root is 16.

Q5. 195² = ?

  1. 38035
  2. 38125
  3. 38025
  4. 37635
  5. 38220
Show answer and solution

Answer: C. 38025

195² = 38025. Tip: (a + b)² = a² + 2ab + b².

Q6. 8³ = ?

  1. 612
  2. 512
  3. 502
  4. 448
  5. 520
Show answer and solution

Answer: B. 512

8³ = 8 × 8 × 8 = 512.

Q7. 165² = ?

  1. 27225
  2. 27125
  3. 27235
  4. 27275
  5. 27325
Show answer and solution

Answer: A. 27225

For numbers ending in 5: 16 × 17 = 272, then append 25 → 27225.

Q8. 14³ = ?

  1. 3375
  2. 2734
  3. 2844
  4. 2744
  5. 2758
Show answer and solution

Answer: D. 2744

14³ = 14 × 14 × 14 = 2744.

Q9. √962361 = ?

  1. 983
  2. 981
  3. 979
  4. 980
  5. 991
Show answer and solution

Answer: B. 981

981 × 981 = 962361, so √962361 = 981.

Q10. 545² = ?

  1. 297052
  2. 296925
  3. 297025
  4. 297035
  5. 297125
Show answer and solution

Answer: C. 297025

For numbers ending in 5: 54 × 55 = 2970, then append 25 → 297025.

Q11. 525² = ?

  1. 275635
  2. 275625
  3. 275725
  4. 275525
  5. 275652
Show answer and solution

Answer: B. 275625

For numbers ending in 5: 52 × 53 = 2756, then append 25 → 275625.

Q12. 32³ = ?

  1. 31744
  2. 32768
  3. 32868
  4. 32758
  5. 35937
Show answer and solution

Answer: B. 32768

32³ = 32 × 32 × 32 = 32768.

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