अनुक्रम \(10,17,24,31,\ldots\) में कौन-सा पद (73) है?
In the sequence \(10,17,24,31,\ldots\), which term is (73)?
Explanation opens after your attempt
C. (10)वाँ(10)th
Concept
(a_n=10+(n-1)7=7n+3), so (7n+3=73) gives (n=10). Form the rule and set it equal to the given term.
Why this answer is correct
The correct answer is C. (10)वाँ / (10)th. (a_n=10+(n-1)7=7n+3), so (7n+3=73) gives (n=10). Form the rule and set it equal to the given term.
Exam Tip
(a_n=10+(n-1)7=7n+3), इसलिए (7n+3=73) से (n=10)। नियम बनाकर दिए पद के बराबर रखें।
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