Average practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.
What is the average of all integers between 100 and 250 that are exactly divisible by 11?
100 और 250 के बीच उन सभी पूर्णांकों का औसत क्या है जो 11 से पूर्णतः विभाज्य हैं?
Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।
Correct Answerसही उत्तर
A. 176
Explanationव्याख्या
For an Arithmetic Progression:
समांतर श्रेणी के लिए: Average = (First term + Last term) ÷ 2 औसत = (पहला पद + अंतिम पद) ÷ 2 First multiple of 11 after 100 = 110 100 के बाद 11 का पहला गुणज = 110 Last multiple of 11 before 250 = 242 250 से पहले 11 का अंतिम गुणज = 242 Average: = (110 + 242) ÷ 2 = 352 ÷ 2 = 176 Hence, the correct answer is 176.
अतः सही उत्तर 176 है।
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