अनुक्रम (7,12,x,34,51) में अंतर (5,9,13,17) के क्रम में बढ़ते हैं। (x) का मान क्या है?
In the sequence (7,12,x,34,51), the differences increase as (5,9,13,17). What is the value of (x)?
Explanation opens after your attempt
C. (21)
Concept
(12+9=21) and (21+13=34). Exam tip: check both sides of a missing term.
Why this answer is correct
The correct answer is C. (21). (12+9=21) and (21+13=34). Exam tip: check both sides of a missing term.
Exam Tip
(12+9=21) और (21+13=34) है। missing पद के दोनों तरफ जाँच करें।
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