alleryકઈ વર્ગ સંખ્યા ત્રિકોણીય સંખ્યાઓ 6 અને 10 નો સરવાળો છે?
A18
B16
C14
D20
Answer & Solution
Correct answer: B. 16
બે ક્રમિક ત્રિકોણીય સંખ્યાઓનો સરવાળો એક વર્ગ સંખ્યા હોય છે, અને 6 + 10 = 16, જે 4 નો વર્ગ છે.
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