# 8. A student multiplied 7236 by 65 instead of multiplying by 56. By how much was his answer greater than the correct answer? (Hint: Do you need to do both the multiplications?)

H Harsh Kankaria

Given,

The student multiplied $7236\ by\ 65$ instead of $56$.

Wrong answer = $7236 \times 65$

Correct answer = $7236 \times 56$

$\therefore$ The difference in the answers = $7236 \times 65 - 7236 \times 56$

$= 7236 \times (65 - 56) = 7236 \times 9$

$= 65124$

Hence, his answer was greater than the correct answer by $65124$

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