• # question_answer 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

$987=3\times 7\times 47$ So, the required number must be divisible by each one of 3, 7, 47.