Q14:
If 10^50 – 74 is written as an integer in base 10 notation, what is the sum of the digits in
that integer?
A. 424
B. 433
C. 440
D. 449
E. 467
这道题不会做,答案是C.440 as an integer in base 10 notation什么意思?
请指教
我算出来是431,答案中根本没有:(作者: himba 时间: 2004-9-29 12:57
就是10进制的意思。99...9926 => 9*48+2+6=440.有48个9.
欢迎光临 国际顶尖MBA申请交流平台--TOPWAY MBA (http://forum.topway.org/)