allery5, 10, 15, 20 के अंतर से 6, 11, 21, 36, 56 बनते हैं। अगली संख्या कौन-सी है?
A76
B86
C81
D80
Answer & Solution
Correct answer: C. 81
अंतर 5, 10, 15, 20 हैं, इसलिए अगला अंतर 25 होगा और 56 + 25 = 81।
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