Mathematics Question

If 2 times the sum of the consecutive even numbers is greater than 94 , what is the smallest possible value of the larger number ?

2(n+n+2)>94
2(2n+2)>94
4n+4>94
4n>90
n>22.5

Since n is even number, the smallest possible value of n is 24,
Therefore, the smallest possible value of the larger number is 24+2, ie.26

2013-09-04 00:02:29 補充：
係啵! 考試唔設好似扣分......

2013-09-04 00:05:08 補充：
打漏 "Let n be the smaller number "

2013-09-04 00:06:50 補充：
感謝Masterijk提供另一方法(請看意見欄)

2013-09-04 00:08:56 補充：
55,設題目要求的比較好.

oh good i know now

如果你先設 n 為題目要求的larger number，那麼解釋的時候就會方便一點。

2 (n + n-2) > 94
2n-2 > 47
2n > 49
n > 24.5
n = 26

2013-09-04 00:08:30 補充：
扣 pp-1

即是 poor presentation