(完整版)英文数学题(1)

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2021年02月23日 08:30
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2021年2月23日发(作者:好久没回家)


1



In 2004, 16 June falls on a Wednesday. On what day of the week will 16


June fall in 2010?



2




In a magic square the sum of the numbers in each row, in each diagonal


and in each column are equal.



In this magic square the value of x is:



3



If half of a number is 30, then three-quarters of that number is____.



4



The sum of the digits of the following product



999×


555



5



Three positive integers have a sum of 28. The greatest possible product


that these integers can have is_____.



6



Jack was trying to tessellate regular pentagons. He managed the



following figure.



The size of angle .a. is______.



7



If the area of the shaded region of the regular hexagon in the diagram



below is 36 cm2, the area of the whole hexagon in cm2 is_____.



8



In what follows,




and


Δ



are different numbers.



When 503 is divided by




the remainder is 20.



When 503 is divided by Δ the remainder is 20.



When 493 is divided by




x


Δ



the remainder is_____.



9



A lady, her brother, her son and her daughter (all related by birth) played




volleyball.



The


worst player's twin (who is one of the four players) and


the




best



player are of opposite sex.




1


The worst player and the best player are of the same age.



Who cannot be the worst player(s)?



A) brother only B) daughter only



C) son and daughter only D) lady and daughter only



E) lady only



10



If you continue the given number pattern, in what row and in what



position in that row will the number 320 be?



1 -------------- row 1



2 3 -------------- row 2



4 5 6 -------------- row 3



7 8 9 10 -------------- row 4



The answers are given in the order of row position.



参考答案:




1



Wednesday



2



12



3



45





4



27


(求数位上上的数字之和)


5



28=9+9+10



因此答案为


810


< p>
6



36





7



108



8



503-20=483



483=3


×


7


×


23



21


×


23



因此□



x


Δ=

483



因此此题余数是


10.



9



D



10



25



20



1



Did


you


know?


In


the


decimal


number


system


(base


10)


ten


different


digits,


0


to


9,


are


used


to


write


all


the


numbers.


In


the


binary


number


system (base 2) two different digits are used, i.e. 0 and 1.



Which one of the following numbers is not a valid number in the



octal number system (base 8)?




2


A) 128 B) 127 C) 126 D) 125 E) 124



3



The number of diagonals that can be drawn in a regular polygon with



twenty sides (icosagon) is_____.



4



If


a


and


b


are


integers,


10Ä3=1,152Ä7=3,


and


then


379Ä6 is equal to_____.



5



Two numbers are in the ratio 2 : 3. When 4 is added to each number the


ratio changes to 5 : 7.



The sum of the two original numbers is____.



6



The greatest number of Mondays which can occur in 45 consecutive



days is____



7



Saul plays a video game in which he scores 4 for a hit and lost 6 for a


miss. After 20 rounds his score is 30. The number of times he has missed


is____.




8



Three girls A, B and C run in a 100 m race. When A finishes, B is 10 m



behind A and when B finishes C is 20 m behind B. How far in metres was



C from A when A finished?



(Let’s assume all


the athletes run at a constant speed)




9



The areas of the faces of a rectangulabox are 84 cm2 , 70 cm2and 30


volume of the box in cm3 is____.





3


10



You have 3 weights: 1 kg, 3 kg and 9 kg as well as an equal arm balance,


as


shown.


How


many


different


weight


objects


can


you


weigh


with


these


three?



[Remember the weights may be placed on either side]



参考答案:




1



A < /p>


考察我们学过的简单的进制问题,显然


8


进制中没有


8


出现




2



B


用排除法




3



170


找规律,公式为


n


×(


n-3


)÷


2



4



1


定义 新运算,就是求


379


÷


6

< p>
的余数。




5



40



16



24



6



7



7



5


< /p>


8



28


米,根 据距离比求出速度比,三者的速度比为


1


9/10



18/25



9



420


分解质因数




10



13





1



An ant covers a distance of 90 metres in 3 hours. The average speed of


the ant in decimetres per minute is____.



2





3



In a certain town some people were affected by a



flu




epidemic. In the


first


month


20%


of


the


population


contracted


the


flu


whilst


80%


were


healthy.



In the following month 20% of the sick people recovered and 20% of the



4

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