一Ｄ F.1既英文數學題

Cally counted the number of people in a photo taken during a candle-light evening party to estimate the total number of people who joined the party . After counting , she found that there were 48 people in the photo .If the area shown in the photo was only 1/10 of the total area , estimate the total number of people who joined the party .
中譯：Cally 把人數計算在內在蠟燭－光的晚上期間被照宴會估計參加了宴會的人的總數的一張相片了。 在計算之後，她發現在相片中有 48個人。如果在相片被顯示的區域是總面積中的只有 1/10 ，估計參加了宴會的人的總數。

Let x be the number of people who joined the party .
1/10x=48
x=48*10
x=480
∴the number of people who joined the party is 480.

Cally 計數了人數在相片被採取在燭光晚上黨期間估計參加黨的總人數。在計數以後, 她發現有48 個人inthe 區域被顯示在相片是只1/10 總面積的相片If, 估計參加黨的總人數。