Identify the correct statements:
A. (216)1/3 > (169)1/2
B. The next term in the series 2, 7, 28, 63, 126, ....... is 217
C. The area of equilateral triangle of side 10 cm is 25√3
D. The average of the following observations −2, −1, 0, +1, +2, +3 is ½
Choose the correct answer from the options given below:सही कथनों की पहचान कीजिए:
A. (216)1/3 > (169)1/2
B. श्रृंखला 2, 7, 28, 63, 126, ....... का अगला पद 217 है
C. 10 से.मी. भुजा वाले समबाहु त्रिभुज का क्षेत्रफल 25√3 है
D. निम्नलिखित प्रेक्षणों −2, −1, 0, +1, +2, +3 का औसत ½ है
नीचे दिए गए विकल्पों में से सही उत्तर चुनिए:
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Correct answer: A. C and D Onlyकेवल C और D
Explanation
A: (216)1/3 = 6 and (169)1/2 = 13, so 6 > 13 is false. B: the series is 1³+1, 2³−1, 3³+1, 4³−1, 5³+1, so the next term is 6³−1 = 215, not 217 — false. C: area = (√3/4) × 10² = 25√3 cm² — true. D: sum = −2−1+0+1+2+3 = 3, average = 3/6 = ½ — true. Hence C and D only.A: (216)1/3 = 6 तथा (169)1/2 = 13, अतः 6 > 13 असत्य है। B: श्रृंखला 1³+1, 2³−1, 3³+1, 4³−1, 5³+1 के क्रम में है, अतः अगला पद 6³−1 = 215 होगा, 217 नहीं — असत्य। C: क्षेत्रफल = (√3/4) × 10² = 25√3 वर्ग से.मी. — सत्य। D: योग = −2−1+0+1+2+3 = 3, औसत = 3/6 = ½ — सत्य। अतः केवल C और D।More Mathematical Reasoning and Aptitude questions
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