首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
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
admin
2012-05-29
64
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/ThyK777K
本试题收录于:
A类竞赛(研究生)题库大学生英语竞赛(NECCS)分类
0
A类竞赛(研究生)
大学生英语竞赛(NECCS)
相关试题推荐
Replaceeachdotwiththecorrespondingletter.AEBFCGDH..
8195+1921Ifthesetwonumberstotal6879,whatdothetwonumbersbelowtotal?8216+1909
Whatnumberreplacesthequestionmark?
Howoldwouldapersonbornin50BCbeontheirbirthdayin50AD?
Oneverybirthdaysinee1wasborn,Ihavehadacakedecoratedwiththeappropriatenumberofcandles.Ihaveblownout210cand
SincemybirthIhavehadabirthdaycakewithcandles,oneforeachyearofmybirthdays.Todate,Ihavehad325candles.How
A、Sheisnotsatisfiedwithherbirthdaypresent.B、Shehasgottwodigitalcamerasforherbirthday.C、Shehasbeenusinganol
随机试题
一国政府向另一国政府提供的优惠性贷款是【】
与津液的排泄有密切关系的是
治疗轻度溃疡性结肠炎首选
下列选项中()不属于建筑工程从业的经济组织。
影响社会总需求变动的因素有两类,即政策变量和外生变量。下列会引起总需求变动的因素中,属于外生变量的有()
调研产生某工序施工质量问题原因的方法,要经过的程序包括()。
以下哪个选项中的作品全部出自美国作家之手?
It’sfairlywellknownthatabaddiet,alackofexercise,andgeneticscanallcontributetotype2diabetes.Butanewglobal
Ifthetechnologicalrevolutioncontinuestohaveitseffects,therewillbefewerandfewerjobsavailable,particularlytosc
Inhisyouth,KnuteAxelbrodwantedtolearnmanylanguages,toknoweverythingabouthumanhistory,to【C1】______wisebyreadin
最新回复
(
0
)