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দুইটি সংখ্যার অনুপাত $3:4$ এবং এদের ল.সা.গু. $180$। সংখ্যা দুইটি নির্ণয় কর।

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মনে করি, সংখ্যা দুইটি $3x$ এবং $4x$

[$x$ অনুপাতের সাধারণ গুণিতক]

$3x$ এবং $4x$ এর ল.সা.গু. $12x$

প্রশ্নমতে,
$12x=180$

বা, $x=\frac{180}{12}$

$\therefore x=15$

সুতরাং
১ম সংখ্যা $3x$$=3\times15$$=45$
এবং ২য় সংখ্যা $4x$$=4\times15$$=60$ [Answer]

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