allery2, 3, 5, ?, 11, 13 या यादीत एक मूळ संख्या गहाळ आहे. ती कोणती?
A6
B8
C7
D9
Answer & Solution
Correct answer: C. 7
5 आणि 11 मधील मूळ संख्या 7 आहे, कारण 6, 8 आणि 9 या संयुक्त संख्या आहेत.
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