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2 वाजता सुरू करा; पर्यायी ×2+a, नंतर ×3−b, a,b प्रत्येक 1–4 सह. बरोबर एक दुसरी संज्ञा चुकीची आहे:2,8,19,41,121,245. त्याची बदली?

A6
B8
C9
D7
Answer & Solution
Correct answer: D. 7
फक्त a=3,b=2 2,7,19,41,121,245 देऊन, एका पदाशिवाय सर्व फिट होतात.
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