1971-09-09 — Page 15

REFERENCE LISRARY

育教低頁三張T第日十二月七年亥辛曆 WAH KIU YAT PO

報日僑單

CIT

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四期星日九月九年一七九一曆公年十六國民華中

夏僑

【EZ目中學同學暑期進修專欄 堅西英文書主

NSWER:

The required aver speed for the whole

28

ple. 3

英文數學

(十三)

學畢業同學

CHAPTER TWELVE

暑期進修專欄

DISCOUNT

ANSWER

gallons of wine at $50.00 a gallon is mixed with 5 gallons of wine. at $40.00 a gallon and 2 gallons of water are added. What is they cost price per gallon of the wine thus prógúce2.

SOLUTIONS

The required cost per gallon

($50 $405) +13+5 $3500 2.335

The required cost per gallon of the

編

SOLU

Wholesale catalogue, watch is marked 41, 3120 putans, retocleg is allowed a discount on 15 what price sampaid "pi" ine

Method E The discount

Therefore, the starter, pars [$120

Since discou pays Su

英文(八)

ENGLISH

LESSON EIGHT

It is well sala vrat people do NOT

health until they lose it. When we are young and strong and have good health, we think little about it. Health is better than wealth

It is one of God's best gifts to us. Good health la necessary to happiness and success As a rule, bad health mesus misery and Tail

How can we keep good health? First, we must eat wholesome food. We must eat enough

and not too much. Secondly, we must have plenty of fresh air,and regular physical exercise. Thirdly, we must have enough sleep. Late to bed and late rising will rulu our bealth, "Early to bed and early to rise makes a man healthy. Fourly, we must work. Regular and interesting work, so long as it is not too heavy, will do much to

keep us bealthy. Lastly, we must avoid bad habits, like drinking or smoking too much which will spoil our good health, COMPREHENSION

Exercise 1.

Answer the following questions and your answer must be based on the passage:

Why people do not value health until they lose it?

Which is more valuable health or wealth? 3. Why is health one of God's best gifta? 4 Way 18 enough sleep so important for us?

5% What kind of work we must bava in order.

to keep us healthy?

5. What will ruin our good health?

VOCABULARY

Exercise 2

The following words are taken from the passage. Fill in the space in each sentence with one at them:

valuable

wholesome

1. She prepares

healthy suoceas glit regular ohvalcal

Avoid

meals for the fami

2. Our friendship is very

The baby 18 ******** and strong,

4. Be not with great

ANSWER:

The retailer

The marked price of an article gives a therchant a profi vinot

he allows a discount of 10% what is the actual orofi Der SOLUTION:

Let the cost price se 100%

So the marked" price will be 120%. The required actual profit per cent.

ANSVER

The requar

actual profit për

The marked price of an article is: $500,

what is the discount per ceat!?.

SOLUTION:

ANSWER

Example

The required discount per cent,

($900 - $400) $500 x 100% $100 $500 & 100%*

The required discount per

A television sel is marked £1000 and a 5% reduction is siluneth for Seasho If it is bought by Instalments, the down payment 1050C

and the rest can be paid by, 17; equal instalments" of 566 öken) What is, the difference in amounit of money between buying wi cach and by ustalment

SOLUTION:

ANSWER:

NAME

The price Lought by con

— $1000 (5) $950

The price bought by instalments

$300 + $66 × 314 $1,090, Therefore, the required difference

required difference

EXERCISE 14-

MARKS

DATE,

(1) A table 15 marked $80 but a discount of 154

is allowed for cash, that is the cash price?

(2) A shopkeeper gives a discount of 10% for cash.

At: what price is in article marked price is $2252.

the cash

Ind wholesale catalogue, a camera is marked $350 but the retailer is allowed a discount 2000 What price as paid by the retailer?;

(4) A ear is quoted at $4,000,

wholesaler

Catalogue, but the retailer, only pays $3,700 for 1 Express the trade discount allowed at 9 percentage..

(5) A manufacturer allows the retailer a discount

of 20% on the catalogued price, what as the catalogued price of an "article marked for which the retailer pays:1407..

The marked price of a booty was $11. A mán bought the buck at a discount of 15%; HE gave the shop a ten-dollar note, hem much. change did he get?

*(7) An article is marked $210.00 in shop A and al

15% reduction is given for cashy A similar anticle is marked $225.00 th chop B and 20% is. allowed for cash. How much can a han save he buy the article from shop A

ING

(8) The marked price of e pen was $35 and the

marked, price a ball-pen was $12, A boy. bought the pen at a discount of 10% and, the ball-pen a 20%, I he gave the shop laver Aten-dollar r notes, how much change did he ger 4(9) An article as marked $250 in stop A and 20%

discount as given for cash. A similar article a's marked, $240 in shop Band 35% allowed. for cash. How much can a man save: sf he buys the article from sopp A?

A washing machtue is marked poly and a s reduction 15 allowed for cash fis

bought a instalments, the down payment is $200 and the rest can be paid by & equal instalments of $120 each, What is the difference in amount of money between buying with cash and, instalments.

5. He returned home at

in his work.

hour

6. He was in excellent!

condition!

to him was a book.

Example

me because they owe me money

7. Her

8. They

IDIOMS

1. had better (it is advisable to).

think you had better speak to him about this matter.

would rather (prefer)

I would rather go for a walk than aée a

movie tonight.

put off (to postpone)"

The meeting was put off until next week

to be about to (ready)

I was just about to leave when you telephoned.

over and over (repeatedly)

have told him the same thing ov and over.

6. to wear out (become useless Trom wear

I muat buy a new suit; this one is worni

out.

Exercise 3

Replace the underlined words by an idiom 1. What do you do with your old clothes

when they are useless?

2. He made the same mistake, repeatedly

CHAPTER THIRTEEN_

RACE

$950 $142.

The number of pupils of a certain school frầm Monday to Friday #58 530)

537, 539, 536 and 530 respectively. Find the average nun pupils a day in this week!

SOLUTION

ANSWERE

The required average number of pupi

538 637539-

The required average number

man drives at 25 m.p.h. för fo hours, and 30 m.pihi for

“is the average speed for the whole journey

The required average speed

(25 234,′′x1), miles, »; } hours.

84 miles • 3 hours – 28 m.poh.

We were ready to start dinner when

Helen arrived.

4. Never postpone until COMOFTow what vo

can do today.

prefer to wait."

It is advisable that you do it. MODEL ANSWER (LESSON EIGHT) Exercise 1.

1. When they are young and strong and have

good health they think little about it Health.

Health is necessary

виссов8,

nappiness

The average age of 6 people is 36,

15:37 and the average, age of the next Jast

SOLUTION:

The ayes

age of the first

How old is the

The torul age of the 6 people The towel age of the first five people

372x32 à 1 v03.

age of the Last) eople last one is 411.

Ther

ANSHI

The aze

EXERCISE 15

*(1) 10, 10% of coffee at $3.60 per 10, are mixed wi Sib, a coffee je $4.20 per it. that is the cost per 1b; of the mixture?.

Apani examination a boy gets an average or o Temarks for Chinese, English, and Arithmetic, and the average of 81 marks for Arithmetic, Social Studies and Science. If the average for all ther 5 subjects is 74 marks, how many marks does her get for Arithmetic

*(3) The average of 5 numbers is 25. If the average

of the first tuo is 20 "and the average of the last two is 31, what is the middle number?

*(4) A girl works for 4 hours a day for 3 days, 42ı

hours a day for 2 days and 3 hours a day for 14 days. How many hours per day does she work

on the average? A

*(5). A man works for 9 hours a day.. from Monday to

Friday. He works for 4 hours on Saturday and rests on Sunday. How many hours, e day does he work on the average in a

week?" (6) 12 is added to each of lave numpers, by

much will their average vortašé?

*(7) The average of 3 numbers 1677, The avera

of another L numbers as 21. What .16 The average of the numbers?

(8) rob. of tea. A at $350 per ip, are mixed

wi-cho 16. of Tea at $2.25, per sb. If the merchant wants to take a profit of 20%, what will be the selling price of mixture per, to:? (9) The average height off pupils is 5 R. if,

The average of the first free is 4 ft 10 inaj and average of the next two as 5 for 3 100, what is the height of the last one?) 14 (10) A woman works: 6 hours a day from Monday to

Friday. She works 4 hours on Saturday. How many hours a day does she work on the average from Monday to Saturday?

4) man drives de 35 miles per hour for 2 hoursy

32 miles for 3 hours, 26 miles for 4 hours and- rests for 1 hour. What is the average speed for the whole journey?

(12) 11 15 is added to the total of numbers

̇例2

DIS

例題

Cry

(3)

(3)

(4)

now mich will their average increase?

第十二章 折扣:

(12)

柊時發價目表中:一手感篇120元,但需售商可獲折扣15%(即八三折), 問零售商然付

若干?

剩人照定價一件貨品,則可德利20%,令用定價九折變出,他實際蕪利百分之幾? 一件物品定價為500元,其人只然行400元,問折扣之百分不感做?

茶爐裙孌腺價1,000元,現金属祗收九五折。若分期付款,即首扣爲100元,其餘分十二 期撇付,每期66元。問用現金購要比分期付欸少付若干?

·練習十四

一確定價有30元,現金購買瓩收八五折,問用現金需写,需欸若干个

禁貨品,马金滴荳感收九折,今袛零用現金225元便可購得,問定價厯爲若干个 在批驳鋼目中,一相機定價$350元,但零售商可速九折,同零售商然付欸若干?

汽車定價含4,000元,但零售商只需付3,700元便可起得,問折扣的百分含

(5)’勝深某物品,某職菜可給於零售商促的八折,若零售商袛付140元,問定便爲若干? (6) 某换定價11元(共君以八五折購有該響,若他村十元紙幣一張,問原投囘多少7 (7).

茶貨品在A店標價210元,現金購買鼴收八五折,同樣貨品在B店標價225元,現金購買新 收入拆,開在A店購買可少付若手2

CBX

(93.

細箂一楼定價35元,而原子笹一枝定價12元。某男孩購鋼筆一枝低收九折,原子笹一枚

“能收八折,消他精五十元紙幣三張,問應找鬥者于2

某货品在A店搡標止250元,現金購荳墮收八折,同機貨品在B店饌價240元,現金牌置袛软 八五折間在A店解野可少付若干

(10)、茶洗次機標價800元,現金属祗收九五折。若分期付款,則首期有200元,其餘分六期邀

·行,每120元。問用現金購實比分期付款少付若干?

例 ®

第十三章平均數

某校學生由星期一至星期三出席人數依次爲538537,539,536及580間在欣星期內, 每日出席人數平均爲若干? 例知?某人亲肤汽車∗百2小時速度含每小時25哩,第三小時則為每小際34哩,問全程的平均速

153 將每加50元的3加侖與每加淪值40元的酒5加侖说會,再加水2加侖問混合後的酒等

DIGREET 例題4:6人的平均年齡露36歲,吉多人的平均年齡337歲

~人是變歲?、

練習十五

人的平均年齡,爲32歲閱最宋

(1)將每值3.6元之深10碗頁每磅值4.2元之喋5硬混合(間混合後之樂啡每磡成本若干? 某生考試成績如下:中文、英文及算後之平均分數幣70分,算術、社會及自然之平均分數 篇81分。而五科之平均分數為74分,間算衡一科分數若干?

有五個數,其平均值為25,設首兩數之平均值倉201嫩在兩數之平均值需31+愛中間的獄

某女道工作3天,每天工作5小時,又工作2天,每天工作4一小時,最後工作4天每天小 時,問她平均每天工作黎小時? 某人在一個星期中,星期一至星期五每天工作9小時,星期六工作4小時星期日休息,閒 他在一星期中平均每天工作桃小時?

Because late to bed

ruin our health.

late rising will

Regular and interesting work, so long as

it is not heavy will do mich to keen us. healthy.

Drinking or smoking too much mix 201

our good health

Exercise 2

wholesome 2. valuable 5. healthy

6. physical

success 5. regula

B. avoid

Exercise 3

1. worn out

put off

better

over and over

would rather

about You had

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