खालीलपैकी संख्यांची कोणती जोडी सहमूळ आहे?
A12 आणि 18
B14 आणि 21
C8 आणि 15
D20 आणि 25
Answer & Solution
Correct answer: C. 8 आणि 15
8 आणि 15 मध्ये 1 व्यतिरिक्त कोणताही सामाईक विभाजक नाही, तर इतर जोड्यांमध्ये 6, 7 किंवा 5 सामाईक आहेत.
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