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  • Question
  • Which of the following number is divisible by 24?


  • Options
  • A. 35718
  • B. 63810
  • C. 537804
  • D. 3125736

  • Correct Answer
  • 3125736 

    Explanation
    24 = 3 x8, where 3 and 8 co-prime.

    Clearly, 35718 is not divisible by 8, as 718 is not divisible by 8.

    Similarly, 63810 is not divisible by 8 and 537804 is not divisible by 8.

    Consider option (D),

    Sum of digits = (3 + 1 + 2 + 5 + 7 + 3 + 6) = 27, which is divisible by 3.

    Also, 736 is divisible by 8.

    ∴ 3125736 is divisible by (3 x 8), i.e., 24.


  • Numbers problems


    Search Results


    • 1. 
      (963 + 476)2 + (963 - 476)2 =?
      (963 x 963 + 476 x 476)

    • Options
    • A. 1449
    • B. 497
    • C. 2
    • D. 4
    • E. None of these
    • Discuss
    • 2. How many terms are there in the G.P. 3, 6, 12, 24, ... , 384?

    • Options
    • A. 8
    • B. 9
    • C. 10
    • D. 11
    • E. 7
    • Discuss
    • 3. (35423 + 7164 + 41720) - (317 x 89) =?

    • Options
    • A. 28213
    • B. 84307
    • C. 50694
    • D. 56094
    • E. None of these
    • Discuss
    • 4. The sum of all two digit numbers divisible by 5 is:

    • Options
    • A. 1035
    • B. 1245
    • C. 1230
    • D. 945
    • E. None of these
    • Discuss
    • 5. In dividing a number by 585, a student employed the method of short division. He divided the number successively by 5, 9 and 13 (factors 585) and got the remainders 4, 8, 12 respectively. If he had divided the number by 585, the remainder would have been

    • Options
    • A. 24
    • B. 144
    • C. 292
    • D. 584
    • Discuss
    • 6. If the number 5 * 2 is divisible by 6, then * =?

    • Options
    • A. 2
    • B. 3
    • C. 6
    • D. 7
    • Discuss
    • 7. On dividing a number by 5, we get 3 as remainder. What will the remainder when the square of the this number is divided by 5?

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 4
    • Discuss
    • 8. 35 + 15 x 1.5 =?

    • Options
    • A. 85
    • B. 51.5
    • C. 57.5
    • D. 5.25
    • E. None of these
    • Discuss
    • 9. (12 + 22 + 32 + ... + 102) =?

    • Options
    • A. 330
    • B. 345
    • C. 365
    • D. 385
    • Discuss
    • 10. 8597 -? = 7429 - 4358

    • Options
    • A. 5426
    • B. 5706
    • C. 5526
    • D. 5476
    • E. None of these
    • Discuss


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