दोन धन पूर्णांक 5:7 या प्रमाणात आहेत आणि त्यांचे LCM 420 आहे. त्यांचे HCF शोधा.
A6
B10
C12
D14
Answer & Solution
Correct answer: C. 12
पूर्णांक 5k आणि 7k असे लिहा;
त्यांचे LCM 35k = 420, तर k, त्यांचे HCF, 12 आहे.
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