दो अंकों वाली उन सभी संख्याओं का योग ज्ञात कीजिए जिन्हें (7) से भाग देने पर शेष (2) आता है।
Find the sum of all two-digit numbers that leave remainder (2) when divided by (7).
Explanation opens after your attempt
B. (654)
Concept
The numbers are \(16,23,\ldots,93\), and the sum of (12) terms is (654). A remainder-based AP has common difference equal to the divisor.
Why this answer is correct
The correct answer is B. (654). The numbers are \(16,23,\ldots,93\), and the sum of (12) terms is (654). A remainder-based AP has common difference equal to the divisor.
Exam Tip
संख्याएँ \(16,23,\ldots,93\) हैं और (12) पदों का योग (654) है। remainder वाली श्रेढ़ी का सार्व अंतर भाजक के बराबर होता है।
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