यदि समान्तर श्रेणी \(b-3,b+2,b+7,\ldots\) का (18)वां पद (94) है तो (b) का मान क्या होगा?
If the (18)th term of the AP \(b-3,b+2,b+7,\ldots\) is (94), what is the value of (b)?
Explanation opens after your attempt
D. (12)
Concept
Here (d=5). \(94=b-3+17\times5=b+82\), so (b=12).
Why this answer is correct
The correct answer is D. (12). Here (d=5). \(94=b-3+17\times5=b+82\), so (b=12).
Exam Tip
यहां (d=5)। \(94=b-3+17\times5=b+82\) इसलिए (b=12)।
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