[已解決][問]F.2 MATHS

吾該搵人教我-V-
題目"
THERE ARE ABOUT 148900000 KM2 OF LAND ON EARTH.ON20TH JULY 2004,THE EARTH POPULATION JUST REACHED 6481 MILLION,
(A)BY RIUNDING OFF THE GIVEN NUMBERS CORRECT TO 2 SIG.FIG.,EST.
(I)THE NUMBER OF PEOPLE ON EACH KM2 OF LAND;
(II)HOW MANY M2 OF LAND EACH MAN ON EARTH CAN OCCUPY
(B)IN FACT,THE LAND OCCUPIED BY EACH PERSON ON EARTH IS FAR LESS THAN THE ANSWER OBTAINED IN (A)(II)ABOVE.CAN YOU GIVE SOME REASONS FOR THIS?

[[i] 本帖最後由 S.WinG 於 2007-9-15 03:58 AM 編輯 [/i]]

有冇中文`?_?

成咋英文睇到好煩`...

[quote]原帖由 [i]詩BABEx]`[/i] 於 2007-9-13 01:53 AM 發表
有冇中文`?_? [/quote]
冇-V-
全部英文

我刀F.2,刀英文-3-"
未教到泥度-3-"
ａbｓ0lute ｅrr0r我已死了/3\

ai)148900000/64810000000=0.023km^2
aii)0.023km^2=0.023*1000*1000m^2=23000m^2
b)自己諗