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  • Question
  • If the number 653 xy is divisible by 90, then (x + y) =?


  • Options
  • A. 2
  • B. 3
  • C. 4
  • D. 6

  • Correct Answer


  • Explanation
    90 = 10 x 9

    Clearly, 653xy is divisible by 10, so y = 0

    Now, 653x0 is divisible by 9.

    So, (6 + 5 + 3 + x + 0) = (14 + x) is divisible by 9. So, x = 4.

    Hence, (x + y) = (4 + 0) = 4.


  • Numbers problems


    Search Results


    • 1. The difference between the place values of two sevens in the numeral 69758472 is

    • Options
    • A. 0
    • B. 6993
    • C. 699930
    • D. None of these
    • Discuss
    • 2. The sum of first 45 natural numbers is:

    • Options
    • A. 1035
    • B. 1280
    • C. 2070
    • D. 2140
    • Discuss
    • 3. 3251 + 587 + 369 -? = 3007

    • Options
    • A. 1250
    • B. 1300
    • C. 1375
    • D. 1200
    • E. None of these
    • Discuss
    • 4. It is being given that (232 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?

    • Options
    • A. (216 + 1)
    • B. (216 - 1)
    • C. (7 x 223)
    • D. (296 + 1)
    • Discuss
    • 5. -84 x 29 + 365 =?

    • Options
    • A. 2436
    • B. 2801
    • C. -2801
    • D. -2071
    • E. None of these
    • Discuss
    • 6. The smallest 3 digit prime number is:

    • Options
    • A. 101
    • B. 103
    • C. 109
    • D. 113
    • Discuss
    • 7. The difference between the place value and the face value of 6 in the numeral 856973 is

    • Options
    • A. 973
    • B. 6973
    • C. 5994
    • D. None of these
    • Discuss
    • 8. Which one of the following can't be the square of natural number?

    • Options
    • A. 32761
    • B. 81225
    • C. 42437
    • D. 20164
    • E. None of these
    • Discuss
    • 9. What is the unit digit in the product (365 x 659 x 771)?

    • Options
    • A. 1
    • B. 2
    • C. 4
    • D. 6
    • Discuss
    • 10. How many 3 digit numbers are divisible by 6 in all?

    • Options
    • A. 149
    • B. 150
    • C. 151
    • D. 166
    • Discuss


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