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A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9s are wrong and the other  digits are correct, then the correct answer would be ________.
  • a)
    553681
  • b)
    555181
  • c)
    555681
  • d)
    556581
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A boy multiplied 987 by a certain number and obtained 559981 as his an...
Given: A boy multiplied 987 by a certain number and obtained 559981 as his answer.
We need to find the correct answer if both 9s are wrong and the other digits are correct.

Solution:
Let the required number be x.
So, 987 × x = 559981.
On solving, we get x = 567.
Now, if both 9s are wrong, then the correct answer would be:
987 × 567 - 90 = 555661.
But this is not among the given options.
Therefore, the correct answer would be the one closest to 555661.
On checking the options, we see that option C, 555681 is the closest to 555661.
Therefore, the correct answer is option C.

Answer: Option C (555681)
Free Test
Community Answer
A boy multiplied 987 by a certain number and obtained 559981 as his an...
987 = 3 × 7 × 47
So, the required number must be divisible by each one of 3, 7, 47.
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