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  • Question
  • A teacher multiplies 987 by a certain number and obtains 556781 as her answer. If in the answer, both 6 and 7 are wrong but the other digits are correct, then the correct answer will be


  • Options
  • A. 553681
  • B. 555181
  • C. 556581
  • D. 555681

  • Correct Answer
  • 555681 

    Explanation

    Given number is 987 = 3 x 7 x 47.

    So, required number must be divisible by each one of 3, 7, 47.

    None of the numbers in 553681 and 555181 are divisible by 3. While 556581 is not divisible by 7.
    Correct answer is 555681.


  • Numbers problems


    Search Results


    • 1. Find the remainder when 1234 x 1235 x 1237 is divided by 8.

    • Options
    • A. 4
    • B. 2
    • C. 0
    • D. 6
    • Discuss
    • 2. How many numbers with distinct digits are possible product of whose digits is 18?

    • Options
    • A. 12
    • B. 8
    • C. 6
    • D. 4
    • Discuss
    • 3. 3x + y = 19 and x + 3y = 1. Find the value of 2x + 2y

    • Options
    • A. 20
    • B. 18
    • C. 11
    • D. 10
    • Discuss
    • 4. What is the value of 4 in 475?

    • Options
    • A. 4
    • B. 400
    • C. 475
    • D. 40
    • Discuss
    • 5. The sum of the digits of a two-digits number is 10,while when the digits are reversed, the number decreases by 54. Find the changed number ?

    • Options
    • A. 28
    • B. 19
    • C. 37
    • D. 46
    • Discuss
    • 6. What is the right most integer of the expression 65776759 + 54697467 ?

    • Options
    • A. 4
    • B. 6
    • C. 9
    • D. 0
    • Discuss
    • 7. A box contains 90 screws each of 100 gms and 100 bolts each of 150 gms. If the entire box weighs 35.5 kg, then the weight of the empty box is ?

    • Options
    • A. 10.5 kgs
    • B. 12 kgs
    • C. 9.6 kgs
    • D. 11.5 kgs
    • Discuss
    • 8. How many digits will be there to the right of the decimal point in the product of 95.75 and 0.2554 ?

    • Options
    • A. 6
    • B. 7
    • C. 8
    • D. 9
    • Discuss
    • 9. A sequence of natural number 2,3,5,6,10. Such that no square and no cube occurs in the term. Find the 300th term of sequence ?

    • Options
    • A. 322
    • B. 319
    • C. 321
    • D. 320
    • Discuss
    • 10. Which of the following is not a prime number?

    • Options
    • A. 5
    • B. 11
    • C. 21
    • D. 37
    • Discuss


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