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Number System practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.

Question language / प्रश्न भाषा

(45 + 46 + 47 + …… + 113 + 114 + 115) = ? Explanation 2 = 71(45+115) 2 = 71 × 160 2 = 71 × 80 = 5680

45 से 115 तक सभी पूर्णांकों का योग क्या है? व्याख्या: First term, a = 45 Last term, l = 115 Number of terms: n = 115 − 45 + 1 = 71 Sum of arithmetic progression: S = n(a+l)
Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।
A
5600
B
5656
C
5680
✓
D
4000

Correct Answerसही उत्तर

C. 5680

Explanationव्याख्या

Explanation is not available for this older question yet. / इस पुराने प्रश्न की व्याख्या अभी उपलब्ध नहीं है।

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