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Question
A boy multiplied 423 by a number and obtained 65589 as his answer. If both the fives in the answer are wrong and all other figures are correct, the correct answer is-
60489
62189
61189
62389
ANSWER : 1
Descrption
<p>Obeservation of the results tell us that the multiplier should end with a 3 o as ( 3×3) = 9 and should be between 140 and 160 as ( 423 × 160) = 67680</p> <p>The possible multiplicants thoufare are 143, 153, and 163 while trying to multiply 153, and 163 don't give 89 as the last 2 digit</p> <p>Multiply 423 to arrive to 60489</p>
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