International Maths Olympiad Forum By SOF Olympiad Trainer - Page 512

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
dfd

Ans 2:

Class : Class 6
trick question

Ans 3:

Class : Class 8

Ans 4:

Class : Class 9
The answer is D .

Ans 5:

Class : Class 7
man the answer is 10 lackhs

Ans 6:

Class : Class 9

Ans 7:

Class : Class 4
The answer is D

Ans 8:

Class : Class 4
solutions should be in detail and a little easy

Ans 9:

Class : Class 9
BIR you have written ten thousand instead of one thousand !!!

Ans 10:

Class : Class 8
The answer is D- 1 thousand

Ans 11:

Class : Class 2
100 tens = 1 thousand

Ans 12:

Class : Class 4
10000

Ans 13:

Class : Class 5
the answer is c

Ans 14:

Class : Class 6

Ans 15:

Class : Class 3

Ans 16:

Class : Class 5
The answer is (A) because it has said the minor 5-digit no.

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
its more than easy D

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 8
It is NOT out of syllabus . The sulution is that one moon is 18.So,18x18=324.To get the star devide 18 by 3=6.18-6=12

Ans 2:

Class : Class 3
I don't know the answer because IT IS OUT OF SYLLABUS

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
wat

Ans 5:

Class : Class 8
out of syallabus

Ans 6:

Class : Class 7
the answer is 108

Ans 7:

Class : Class 3
How the value of 2 moon is 18 i think 324/2=162

Ans 8:

Class : Class 5
It is not wrong moon divide by star is 3 moon multiply by moon is 324 3star multiply 3star is 324 star .star equals 324/9 is 36 star - 6 moon equals 18 answer is 12

Ans 9:

Class : Class 5
options given seems to be wrong

Ans 10:

Class : Class 3
It is not that hard, just that if you understand the question you can easily find the answer.The pea pie who are saying that the question is wrong, you are the one who is wrong, not the question!

Ans 11:

Class : Class 4

Ans 12:

Class : Class 6
it is a little tricky but i solved it.

Ans 13:

Class : Class 3
pls explain

Ans 14:

Class : Class 4

Ans 15:

Class : Class 8
IT IS OUT OF SYLLABUS.

Ans 16:

Class : Class 3
correct answer should be 33

Ans 17:

Class : Class 3

Ans 18:

Class : Class 3

Ans 19:

Class : Class 3
I think, it is too much to ask 3rd class student to remember squares of 18.. imagine if kid is not able to identify m * m = 324, how would he be able to solve entire question. not fair!!

Ans 20:

Class : Class 4
Out of Syllabus

Ans 21:

Class : Class 4
the answer should 107

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Option A)

Ans 2:

Class : Class 4
There is no need to do the second part.The first answer is 20L which is 20,000ml. And there is only one option with that answer, which is A,

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6
Ans is A because the answer of question (A) will be 20000 ml because 40 l-20 l=20 l. Now convert 20 l to ml, which is 20000 ml, or, you can say that 20 l and 40 l will be 20000 ml and 40000 ml, respectively. Now do 20000 ml-40000 ml=20000ml. answer of question (B) will be 7/26 by adding the capacity of petrol of April, May, June, July and August, which will be 10 l+20 l+ 25 l+35 l+40 l=130 l. In July, the capacity of petrol used was 35 l, so in fraction, it will be 35 l/130 l. Now simplify the fraction, which will be 7 l/26 l.

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
x = 13

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9
my name is khallel i am like a happy meal

Ans 4:

Class : Class 9
sup how's life

Ans 5:

Class : Class 10

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Option B)

Ans 2:

Class : Class 7
b

Ans 3:

Class : Class 9
It is b i am sure i

Ans 4:

Class : Class 7
c127.1 plus 12.1 = 139.2

Ans 5:

Class : Class 5
out of sylabus

Ans 6:

Class : Class 6
Ans is B because 328 tenths will be 32.8 as tenths place is the first place after the decimal point and 4587 thousandths will be 4.587 as thousandths place is the third place after the decimal point. 32.8-4.587=32.800-4.587=28.213. The product of 28.213 and 5 will be 141.065. We are rounding 141.065 to 1 place after the decimal point, which means that we are rounding 141.065 to its nearest tenth, so the answer will be 141.1.

Ans 7:

Class : Class 7
B

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