頁二第張六第
日一廿月七年子壬属夏
WAH KIU YAT PO
日橋
暑期進修專欄
英文數學
ANSWER:
ENGLISH MATHEMATIC
LESSON 15
SECTION TEN
Express 0,03175 as a fraction in the alm;
SOLINTIN 0.03175
ATSHIR
880 yd
2 miles
880-7
1700 yd
Express 880 yards as a deciaal of four #11***
800 yd, equal to 0.125 of four allema
6' hour
SOLUTION
ANSWER3
Example 3
·Expurgis
(b)
ak Ancipala,
weeks 1 day.
́6 gallons 2. pinta
SOLUTION:
(a)7 weeko3 day
(b)
ANSWER
(a) The required dicimil da 0,005 (b) The required decimal is 0,68
The price of beef is $6.60 per ̈caéty and pork $5.60 piatry
woman buys 1.5 catties of best and 5.5. catties, of pærke. What Change does she get for a hundred dollar note?, OLUTION
“The price of beef and pork
•Prorit = 5+1ling Price Coat Prici
14.50x 30+ $400 x 30+ $2.50
1135+ $120, +$25 - $224 - 456-
The required. porcentage wasned = G+ $224x100% The required percentage was 25%
EXERCISE 12
(1) If a girl spent 46. of her money on books,
37.5% on buying pens, what percentaga' remaine
·Express 2.31 as a percentages
*(1) Express 1271% as a decimal,
*(1) Exprças 2.8 is a percentage of 2:
*(5) at 1 33% of 2 vets 2 dava 3 humað
|(6) In- a certain pinen, if 42% are men):285 de
woman'what percentage ara children? vit: the
opulation de 900,000, how many shildrm are
零
(7) A clerk, "shose sality is $700 a month, receiveő ·
na allowance of 25. Lind him total, incons png"
[8] Petár, bought a house for $25000 and had to mall
(9) By was12.sng wallet Ye $250, "hen made
f256G Ind.hw goat prises.
"(10) 77_A3% 10% heavier than B, 8 to 15€ heavier
than G. C.is 20% heavier than Da... Żyr how such percentage de A: hoarder 'thma D?
(11) David spent 75% of his income, Find hie
income if he saved $220 a year,"
*12) If the price or an anticla de raised by 109,
the increase in the prica 18 $20,- Find the name prices"
(13) A merchant bought 280 books at $6,00 each,
Hẹ mold 120 of them at $9,00; another 120 at
wea the percentage tint ...
(ii) A man Invests $6,00 in firm X and $14,000 in fir, loses 10% und Y gulim 20%, what is
the man's profit per cent.?"
1/15) If a camera Is sold for $228, there is a loss.
of .. Find how much must it be‘adid in order to gain 151
·(24)
A(16) A bought an article for $1,800 wil sold it to Bprofit of 205, Bold 1 to t
* $6,60 × 1,5 + $5.60 x 5.5 - $9.90, + $30,80 + $30,70 Therefore, the required change - $1000.70 $59.3
ANSWER:
*(17) A shop bought milk it 39.60 per gallon” and
sold it at 70% for rich half-pint bottle, 199 bottles were sold in one day, how much profit did the shop sake? N
(17) $.
EXERCISE 13
EXERCISE11
(1) Charge inzen-fiftiethe" into decimale
(2) Eurias 0.1875 as a fraction in the simplerz
(4) Find the difference of 1,5 tons and 2-5 zuka
Express the first quantity as a decimal the wind (
(5). 30, 4 hours.
(6) 3 nii. 2. pła i 5 gallons,"",
(7)
(8)
Express the following trac
3.5 pinta-
6 gallon 2 pinte
(13) After spending 0,25 of the money on books and
0.5 of the remainder on cakes and drinks, a boy!
L(12) The perimeter of a sectangla de 6.38 in. 1.
the Length of the longue atit-of the rectant" La-1984 ina, find the length of the shorter
#ida
¿{13) 4-man” bought 2.5 2h, of tea at $4,20 per Ib. and 325. 16e 'of·coffin at $5.40 per, ID. What chage does he get for a hundredadallar novel
(25) A merchant bought 280 books at 44,00 nach. - Herasid 150 of them at $4.50 eachs another
赫nd the remaindas at $3,50 Whitwan his gala?
(15) The price of beef is $3.20 pin catty, pork
$4.50 per catty and fali 30 cents per tael...
-A. vomain days 1-5 catfies af barf, 4.5 caṭṭies
pork and 1-5 cattặc of fish. What chings)
does she get for d
Indred-dollar-nata7
(16)- When Mark has travelled 18 miles, he has
ibed 0.6, of his journey. If he has walked 0.25 of his tutal Journey, how fa did he walk?
4(17) Find the nucl-1-35 choung, 6,4 chek and
SECTION ELEVEN
STULÉ PERCIPTÍAS
& VENCERTACE În simply a ratio in vhich the sabord siber 1.100,
and noisilly repensented by a fraction withi ̈dusoma.ántai 100, Teig. 5 par 'canta, wriṭṭm xi 55 may, denoke the ratio 5.a 100 pwì vài ka raisannatad by the tractio
percenta
SOLATION 1
Expense #1=). 0.375
2(1) What, sa 60% of 2 ft 6 ing?:
(2)
*(3) Each month
an apoudf $73% of him pavond
saved $100.
Haw ch does ha earn each month
(3)
(5)
(4) A 5.30% 11ghter than 8, by, what percentage
is B heavier than 17
(5) Vhat is 665% of 3 pillons 6-pintad
(5) What in 15% of 2 out, 16 16.7
(7) A had 40% agre wonty thih B. After A nad; given thon hit too mure the cen
bad A originally?
jaman pot $0.00 n" buying cges at $20.00 OS 300. Sonia of the eggs. vere bad.ant. had borba thrown away. He sold the good.oges at $3.00 a dozen and made a profit of 20% on the hole,
(9) A shop pays $75.00 for a picul of rice, and
the retail price 44 200 more than the cost.
· If a man buys 15. erities of this rico frum the shop, how much does he paý? ... “
ho) A man bought 100 his at $4.00 each. He sain
half of them at $5.00 each, 30 thep at..$4,50 and the rest at $3.25. What was the percentage
(11) An article was bought by A and sold to Bat
prosit of 20%, à uld it to C sta profit of 25%. II paid $300, how much did.A par for it? (11)
(12) A boy saved a certain ous of money. His father increased it by 50% If the total savings amyitod to $131.70, how much hàả hàn father, put. Int
(13) Mr. Wong had 20% more money than Mr. Chan
After Mr. Morig had given Mr. Chan $20 they. were each left with equal mums of money. How mach had-Mary Chait at first
(14) 2 cut-76 1b of rigs were bought at $240. The total delivery darga is $10. At what
price: per 3b. aunt it be sold to make profiy
是 ?
(15) A wireless televisim set was bought by X and suld it to Yat a profit of 30%, I sold it to
Z at ardoas of 10%, 11 Zigaid $585, how much
Apawar‡ Ta_Previous Exercials)品
CERCISE 9.
childres
-(1) (4) 2.384 & mp (b) 19 aina (2) 15/23 (3) 1 (4) 45 utina (5) 1/27
(4)7+-22 (7)(5) 660 yards (9) 1 picul 65 cnties (10) % cill, 3 plişi
(12) 2x4x14 = 2) yara (14), 18(15) 89,60 (15) #20
HERCISE 10
(
(1)-$160 (2),ċ paid 3/10 1 cost $20,000 1-4 paid $3,909(3):1/20
(5) (4 x 4500 $500) + {4
(9) (2
ja
二期星
日九廿月八年二七九一展公年一十六國民華中
《16) 當馬克完成了全程的0.6,他刚好行了18架
*若無需步行全程的0.25,和他共识行了
●若干?
(17) 1.356.4尺及8寸之和
(2)
漢女置以欺項的 46.5% 購買鱶♯
37.5%購買鋼筆,問她邊餘若干了
2,31爲百分數。
(3)
化127玉名爲小數:
(4)
2.8是2的百分之悲!
(5)2星期2日3小時的130
(62.某冠42%爲人,28%爲女人,間孩子佔
百分之Î若該地人口爲 900,000人,品 有孩子粒人:
(7)其文員的薪金錢每月200元,若獲得津貼
5%>間他每年收入若干?
彼得用25,000元購買楼宇一所,心
22,000元亥,虧他之百分率
(9) 收音機一架你值為250元,若盈利袋25%
愛嘗健
(10) AHB10%, BHCH 15, CEDE
20%,MA比DHT T
(11) 某人用去攻入的75%,只每年伍在720元
2間他每年的收入稿若干
(12) 某物品涨价10%,若所增的價值钱20元, 水冷求新的售價
(13) 英商人以每本6元之價購書280本,其中
*120本店每本9元之团,120本以每本: 8元之價資出,共餘以每本5元之償變出 3間他進百分之幾?
(14】 某人投6,000元於X公司,314,000元於¥
·公司·若X公司虧蝕10%,而Y公司款10
%9間他获利的百分半為何?
(15) 相機一架,售價為228元,則麫>%
若要獲利15%,問售賈康為若干?2
(16) A11,800元購入業北品後,轉賣與,
我利20%,B轉變與C咭本20%2C購 入時付款若干?
(17) 鮮奶豆價加侖9元5角,佔個每瓶7
> 每瓶容量爲半品脫,業商店一日共沽街 鮮奶199瓶,間獲利若干?
俊十二
T) 2呎6吋的60%是多少
(2) 50米的3-%是多少?
3
(3)、某人每月用去薪金67%,只儲盞100元,
問他每月的薪金爲若干了
若AB輕30%,MBHAR若千?
#2
3加盒6品脫的,是多少?
10次數16磅約15%是多少。
A所有的錢比B多40%,MAGB150元後 則B比A多100元,MÅ有多少?” ̇某人用50元購宜塑蛋,每百鶴查爲20元 3.其中部份城的帶姿察去。好的短打考 價為3元,全部獲利20%,開了的查共 “有若干集?:
米店購入食米每擔75元,零售價比成本街 20%,今某人在該店買此租米15斤,開
·村肤若干?
10) 共入以本4元之價購書100本,以每本 5元之價变出一半,30本以每本4元5角之 伍查出,去餘以每次3元2月5券之優查出 3間他達利百分之幾?
A購入業貨品後,轉膏與B獲利20%,
轉費與C 獲利25%,若C300元,間 A赠人時付款若干?
〔
育教僑華
組,其主娈高H 三育學院:生會帮助今年投各同學,特役一生耳
背、背ㄧ证供教育院】李 九月一日柏立華級育學院);: 八月三十一日一級宮國滅育灣院 八月三十日(柏非教育學院) 九月四、五、六日艹富國激發開 Ji 以上三日均由上午十時至下午四時。
八月廿九日(洪敦育院院J5 此組更定於下列日期及地或會開處,以供各考生詞:
4)介紹該院的一般,一
(四)帮助学生解决入學試的有關問題。
(二)使考生了丽致育竞脊學院學生的前法。
以上六日均上午八時傘至下午五時半,皆若生婚備的將可於考試與
教育學院學生
設考生輔導組
歡迎投考考諮詢
生了發群門院墨生的任及其群來的任務,
新數學
ELEMENTARY MODERN MATHEMATICS
* LESSON EIGHT *
Paperfolding Geometry
Sum of angles of a triangle by folding
In the last lesson, you learı that the sum of angles of a triangle is eaual to 180 The method you used is called Dissection.
However, from Holding triangle, this property car also be shown.
Starting with the triangle Obtuse=angled
注
( Acute-angled
or right-angled triangle.
we fold down the angle at the top eo_that the angle is on the base Line,and at the same time, folding the angles at
ah- the two sides inwards, as own in the llowing figure, we shall get a rectangle. The 3 angles of the triangle will fall on the base line of the triangle. (See figure below):
(b)
SOLUTION &
& Mas Those salary is $8,000 a year; receives 'an faeruss of 5%. -Find'
SOLUTIONİ The increase in salasy - 10,000x400 year
Therefore, the now somust, entury = $8,000+ $400 - $100.
Ec
ANSWER:
Pascary 18 PALEM, Tron: $500 per month to $12000 Posey
Find the increase par 'cent,
So, the Andrassa percentag
$800) 3#, 2200 month
10025
ANSWER
The Increase per cent, da 25%.
等
An article costing $200 vas sold at a profit of 15% find the selling
price
SOLUTION The required selling price $2005 1230. ANSWERE
udio costing $200 fs sold for
using the lost per pan
The Loss w. $200 - $140 - $60
SOLUTION
上
Therefore, the Isse percentage
The required loss perpen
A is 125 heavier than B 1 20% heivier than Cy by how much
cent A heavier than 6H
SOLATION 2
Andy so £ will be a hig
ANSMER
„Exampl
Leaty
34 A% heavier than
$20 for rates every thres oaths What peronatge of the rest
rent of 40 per: nocth:for a fiat je cena, and, pakya
are the ratio?”
SOLUTION
The rate for each month = $205 +3
AMSNER
10
The required pazemitano je 17
200%
pícula" of bennd ware bought at $1.30 per catty, the total deliver
chirge is $5.00. At what prieo per catty must it be sold to maja
a profit of 2057 114,
SOLUTION
ANSWERIT
The total cost including delivery aburg
$1.30 = 350 + $5.00 # $195 + $5 - 320
The required aslling price per catty
$200鮮鍋+200/$2,40*
The required melling priceția eziuü i
A merchant bought 70 books at Vjacu each. He sold 30, of them at
$4.50 each; another 30 at $4.00 each and, the remainder at độ.
ich hat was the percentigo gain?
:
(1)化7/15為小數。
(2) 化0.1875爲長麼分數。 (3) 0361,26的幾分之幾?
#1.542.5*##Z*•
试用小數表示第一數是第二數的多 (SE6)
5):30分14小時
將下列(耀7至10)各敵化為長問之分數
星期一起
(10)
: 3.5品晚
·6抽術2晚
分
6小時40分 312
(1) 某資將其既謂的0.25購買書籍,又將餘款 的0,5赠鮮與茶點,與84.8元,問他原有
(12)→長方形的間界篇6.38吋,若一邊是1,B 时,波長方形的另一邊度?
某人茶Z-5游,每磅4.2元及保辧3,56∗ 国族5.4元,給與100元研幣一張間蛋找
150本以每本4.5元之價變出,60本以每本 4.2元之價賣出,尖鲶以每本3.5元之價變
卡肉每斤3.2元,猪肉每斤4.8元,無解! 3 ,業婦人買牛肉1.5斤,猪肉4.5斤。 01.5斤,給異100元紙幣一張,間釀找國
語
文
(五)
記得廿多年,朱者洗商的一間中學屬小學,那時是小學五年 您,我們港间解台很多深涂肫間去
「子便不惜代顯關。展示,到此的從官媒工作,其教場嘗更添生有 益然,他可以放阳夫散。热很於野草居一部非常那斜的小品文。至新政治 「味道,但袁事是頭,阻止我合帑追小品交所 却是我些老皱,以前是
面對三地阻止理的問我有的彼此是一間中中您。但經我得三版
梅汛(1881–1986)體選人的或者、浙江 人,日本光 攻愛照,後敏治次腿。一九〇九年,任忻州,確認都範學堂」於化們和作 物理。現任「智原中您常上。一九一年革命政府令得 「京成立,任浟背部約,不能都彩圣北京,每芘北京大學及女子范大学 肚國文系滿瓣。後復诏传,任国門大學交换。一九一七年一月抵埏 |州中山大學文學文理主任和政主任。三個月使歲,此被 听,您們著作謎。一直
「野草」;安集「熱風」,「部蕰維」「而已獎」;稻史「國小 趆梉略丄等。翻體有「小彼得」?「桃色的?」、「愛」、「然的象
三,我們從一九一九年發的传族中的孔乙己。他可以白光山鲁主旨 孔乙己足够的一股做跑束都住了的封建識分子炎落的悲貨。孔乙己 過去所「中自有资金。書中自有新如王J的共禍。八股文正可代 此一班者做子为名利的仪器。每一智識份子而知贺魂但不知不饪由 |电商*、错染智識分子或迷人一等,张成「好吃间版],「不會發
生。由於時代之無泜油來,讓一批在 愛港和生活RUGA
子都是以受之心,站在晶風乐所前啊,多災多魚源中國提出解決問題 ,因络,在盛保由於革命之後,笹視雜然不們如何拍,和民居於 他們出超時代的屈协和生者,陸發部设在暗的社會玓病想和醇 恩,所以他寫「阿Q正傳」,不外到中菲民族的病湿病下决心施以
一九二八年热迅在小雜費」會說,「人家到時,你创作,一 感到深味,即年制作,他已經一無听哭。创你總局於受。」之照 和一般的幽 牌冷您絕不相
讓發出可使頭腦明。然而,切不可有冷您魂開的那段,而能可落
∴司公是淡代版交大家。他思來古文派的關係密母宮,是後者 |艾派的宗邹,簉不多有交罰的震來。因為,第一次做古文運動賴東生 ,他極力推司馬溫。第二次古文運動就是歐陽、豬豬感,後來
热桐城派的光驱卻有光,以司馬研究,後來者則這款、 合國一滨艾索於「史記」。這一來,和後,可幫您便成了古交辦 動的一個中心人物
Bisector of an anglè
The bisector of an angle is the straight line which divides the angle into two equal parts.
To obtain the bisector of an; angle by folding, weican fold one arm of the angle ontc the other arm of the same. angle. Press hard to get a crease. This crease will be the bisector of the angle
Angle a
AD
Bisector
Angle m
=Angle:
將一個三角形的上角下指,使其 接觸於底邊,如圖示再推左右兩運的 角何入摺便可得・長方形、各同等水 很容易在圈中看出三角形ABC的三個 用是在一直線之上的,
要摺出分角耲可以將再的二臂
(二摺叠起来,便可得
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