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  • Question
  • Which of the following can't be the unit's digit of a perfect square?


  • Options
  • A. 4
  • B. 6
  • C. 8
  • D. 9

  • Correct Answer


  • Tags: Bank Exams

    Numbers problems


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    • 1. By what least number should 1200 be multiplied so that it becomes a perfect square?

    • Options
    • A. 2
    • B. 3
    • C. 4
    • D. 5
    • Discuss
    • 2. Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7?

    • Options
    • A. 6
    • B. 1
    • C. 2
    • D. 4
    • Discuss
    • 3. The sum of three consecutive even integers is 84. Which is the least integer among them?

    • Options
    • A. 28
    • B. 30
    • C. 32
    • D. 26
    • Discuss
    • 4. A number exceeds its 1/6 by 30. What is the number?

    • Options
    • A. 120
    • B. 150
    • C. 36
    • D. 24
    • Discuss
    • 5. What is the digit in unit's place of the product 51 x 52 x 53 ...... 59?

    • Options
    • A. 0
    • B. 4
    • C. 3
    • D. 6
    • Discuss
    • 6. How many numbers are there from 300 to 700 which are divisible by 2, 3 and 7?

    • Options
    • A. 7
    • B. 8
    • C. 9
    • D. 10
    • Discuss
    • 7. Product of three consecutive odd numbers is 1287. What is the largest of the three numbers?

    • Options
    • A. 9
    • B. 11
    • C. 13
    • D. 17
    • Discuss
    • 8. For what value of X, 211X will be a perfect square?

    • Options
    • A. 4
    • B. 5
    • C. 6
    • D. 9
    • Discuss
    • 9. The number 3521 is divided by 8. What is the remainder?

    • Options
    • A. 1
    • B. 3
    • C. 7
    • D. 9
    • Discuss
    • 10. A prime number contains the digit X at unit?s place. How many such digits of X are possible?

    • Options
    • A. 3
    • B. 4
    • C. 5
    • D. 6
    • Discuss


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