Have some fun with Math - By Daniel Huang
1. Solve this question, round this off to nearest whole number. Answer: 10, why? Comment down below! 2. The n th term of a sequence T n = (2 n + 1) ². Find the difference between the 99th and the 98th term. Answer: (2(99) + 1) ² = 39601 (2(98) + 1) ² = 38809 39601 - 38809 = 792 3. The sum of 3 consecutive even numbers are 222. Find the numbers. Answer: We have the clue: Let x be the 1st number. x + ( x + 2) + ( x + 4) 3 x + 6 = 222 3 x = 222 - 6 3x = 216 x = 216 / 3 x = 72 72 + 2 = 74 74 + 2 = 76 72 + 74 + 76 = 222. So the answer is 72, 74 and 76.
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