Since my birth I have had a birthday cake with candles, one for each year of my birthdays. To date, I have had 325 candles. How

admin2011-03-05  42

问题 Since my birth I have had a birthday cake with candles, one for each year of my birthdays. To date, I have had 325 candles. How old am I?

选项

答案25

解析 假设当前年龄是n,则此时需要的蜡烛的总数为n(n+1)/2=325,可以解得n=25。
转载请注明原文地址:https://kaotiyun.com/show/4byK777K
0

相关试题推荐
最新回复(0)