GWD 10 - 14

If 1050 _ 74 is writeen as an integer in base 10 natation, what is the sum of the digits in that integer?

A. 424 B. 433 C. 440 D.449 E.467

what doest the subject mean by saying that "in base 10 natation", how to solve this problem?

Rank: 7 Rank: 7 Rank: 7

2^#

mikejia发表于 2004-12-27 13:58 | 只看该作者

10^50

就是1后面50个零，减去74后，前面有48个9，最后两位是26， 999999.......999926, 48*9+2+6=440。

[此贴子已经被作者于2004-12-27 13:58:38编辑过]

自2003年开始提供 MBA 申请服务以来，保持着90% 以上的成功率，其中Top10 MBA服务成功率更是高达95%