ICSE BoardEnglish MediumSTD 8MATHSPlaying with Numbers3 Marks
Question
Find the quotient when $73 – 37$ is divided by $4.$
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Answer
Difference of $73 - 37$ is to be divided by $4$
Let $ab = 73$ and $ba = 37$
$\therefore a = 7$ and $b = 3$
The quotient of $73 - 37$ i.e. $(ab - ba)$ when divided by $4$ i.e. $(a -b)$ is $9$
$\left(\because \frac{a b-b a}{a-b}=9\right)$
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