Give stream of consciousness and then the final answer. A boy multiplied 987 by a certain number and obtained 559981 as his answer. If in the answer both 9 are wrong and the other digits are correct, then the correct answer would be:\nOptions:\n(A) 553681\n(B) 555181\n(C) 555681\n(D) 556581\n(E) 556881
User
987 = 3 x 7 x 47\nSo, the required number must be divisible by each one of 3, 7, 47\n553681->(Sum of digits = 28, not divisible by 3)\n555181->(Sum of digits = 25, not divisible by 3)\n555681 is divisible by 3, 7, 47
The final answer: (C).
Assistant