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If two consecutive terms of an arithmetic progression are (18) and (23), what is the common difference?यदि समांतर श्रेढ़ी के लगातार दो पद (18) और (23) हैं, तो सार्व अंतर क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 55
The common difference of an arithmetic progression is the difference between two consecutive terms. Here, the next term is 23 and the previous term is 18, so the common difference is 23 − 18 = 5. Therefore, option A is correct. Exam tip: use common difference = next term − previous term.समांतर श्रेढ़ी का सार्व अंतर लगातार पदों के बीच का अंतर होता है। यहाँ दूसरा पद 23 और पहला पद 18 है, इसलिए सार्व अंतर = 23 − 18 = 5। अतः सही विकल्प A है। परीक्षा में क्रम याद रखें: सार्व अंतर = अगला पद − पिछला पद।
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