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  • Question
  • (12345679 x 72) =?


  • Options
  • A. 88888888
  • B. 888888888
  • C. 898989898
  • D. 9999999998

  • Correct Answer
  • 888888888 

    Explanation
    12345679 x 72 = 12345679 x (70 +2)
    = 12345679 x 70 + 12345679 x 2
    = 864197530 + 24691358
    = 888888888

  • Numbers problems


    Search Results


    • 1. How many of the following numbers are divisible by 3 but not by 9?
      2133, 2343, 3474, 4131, 5286, 5340, 6336, 7347, 8115, 9276

    • Options
    • A. 5
    • B. 6
    • C. 7
    • D. None of these
    • Discuss
    • 2. 8796 x 223 + 8796 x 77 =?

    • Options
    • A. 2736900
    • B. 2638800
    • C. 2658560
    • D. 2716740
    • E. None of these
    • Discuss
    • 3. (22 + 42 + 62 + ... + 202) =?

    • Options
    • A. 770
    • B. 1155
    • C. 1540
    • D. 385 x 385
    • Discuss
    • 4. (xn - an) is completely divisible by (x - a), when

    • Options
    • A. n is any natural number
    • B. n is an even natural number
    • C. n is and odd natural number
    • D. n is prime
    • Discuss
    • 5. What is the unit digit in {(6374)1793 x (625)317 x (341491)}?

    • Options
    • A. 0 
    • B. 2
    • C. 3
    • D. 5
    • Discuss
    • 6. If the number 97215 * 6 is completely divisible by 11, then the smallest whole number in place of * will be:

    • Options
    • A. 3
    • B. 2
    • C. 1
    • D. 5
    • E. None of these
    • Discuss
    • 7. What smallest number should be added to 4456 so that the sum is completely divisible by 6?

    • Options
    • A. 4
    • B. 3
    • C. 2
    • D. 1
    • E. None of these
    • Discuss
    • 8. The difference between the local value and the face value of 7 in the numeral 32675149 is

    • Options
    • A. 75142
    • B. 64851
    • C. 5149
    • D. 69993
    • E. None of these
    • Discuss
    • 9. (112 + 122 + 132 + ... + 202) =?

    • Options
    • A. 385
    • B. 2485
    • C. 2870
    • D. 3255
    • Discuss
    • 10. What will be remainder when 17200 is divided by 18?

    • Options
    • A. 17
    • B. 16
    • C. 1
    • D. 2
    • Discuss


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