দুটি সংখ্যার অনুপাত 5 : 6 এবং তাদের গ.সা.গু 4 হলে দুটির ল. সা. গু কত?
A. 100
B. 120
C. 150
D. 180
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সঠিক উত্তরঃ
B.
120
Explanation:
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