Home›MPPSC Forest›State Forest Service Mains Exam›Section 'B': Forestry and General Science›UNIT-10: Elementary Mathematics and General Mental Ability›Numerical ability, reasoning, coding, data analysis and interpretation and analogy›The missing number in the following sequence will be: 2, 9, 28,

The missing number in the following sequence will be: 2, 9, 28, ....., 126

20223M#mppsc-forest#pyq#mcq#2022
A.57
B.63
C.53
D.65Correct
Explanation & Solution

Correct Answer: (D) 65

The given sequence follows the pattern n³ + 1 for natural numbers n starting from 1: 1³ + 1 = 2, 2³ + 1 = 9, 3³ + 1 = 28. For n = 4, the missing number is 4³ + 1 = 64 + 1 = 65, which fits the next term 5³ + 1 = 126.

हिंदी में प्रश्न एवं आदर्श उत्तर

निम्न अनुक्रम में लुप्त संख्या होगी: 2, 9, 28, ....., 126

A.57
B.63
C.53
D.65सही

सही उत्तर: (D) 65

दिया गया अनुक्रम प्राकृत संख्याओं n के लिए n³ + 1 के पैटर्न का पालन करता है: 1³ + 1 = 2, 2³ + 1 = 9, 3³ + 1 = 28। n = 4 के लिए लुप्त संख्या 4³ + 1 = 64 + 1 = 65 होगी, जो अगले पद 5³ + 1 = 126 के अनुरूप है।

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