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1). 7272). 7283). 7294). 730 |
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Answer» As we KNOW, Sum of n natural NUMBERS = n(n + 1)/2 ⇒ AVERAGE of n natural numbers = (n + 1)/2 Given, Average of n natural numbers = 243 ⇒ (n + 1)/2 = 243 ⇒ n + 1 = 486 ⇒ n = 486 – 1 = 485 ⇒ 3n = 3(485) = 1455 ∴ Average of 3n natural numbers = (1455 + 1)/2 = 1456/2 = 728 |
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