International Maths Olympiad Forum By SOF Olympiad Trainer - Page 314

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
Yes, I agree with Shivansh.

Ans 3:

Class : Class 9
all b,c,d are correct according to the the question which states "select the the INCORRECT option"

Ans 4:

Class : Class 7
the solution is correct, but the question should be to choose the correct option.

Ans 5:

Class : Class 6
The answer is c because they are asking us to find the wrong numeral and 207 is CCVII whereas in the question it is CCXVII

Ans 6:

Class : Class 5
D is the ans

Ans 7:

Class : Class 5
it s showing A one but it is correct

Ans 8:

Class : Class 6

Ans 9:

Class : Class 5
I think that the mistake is in the question he was going to ask the correct match and by mistake he has written "choose the INCORRECT ONES.

Ans 10:

Class : Class 5

Ans 11:

Class : Class 6
C is the answer

Ans 12:

Class : Class 1
1667 - MDCLXVIII Is the wrong answer

Ans 13:

Class : Class 7

Ans 14:

Class : Class 6
A is the *correct* option. They are telling us to find the wrong option

Ans 15:

Class : Class 6
c

Ans 16:

Class : Class 5

Ans 17:

Class : Class 6
its ccccccc

Ans 18:

Class : Class 6

Ans 19:

Class : Class 7
this is a scam

Ans 20:

Class : Class 6
its ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 21:

Class : Class 6
CC means 200,X means 10 and VII means 7(5 1 1)............ So, the number that was to match was 207 but here it is 217,there shouldn't have been X because X made it 17 instead of 207,so the answer is C

Ans 22:

Class : Class 8
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 23:

Class : Class 6
they should write correct but they have written incorrect

Ans 24:

Class : Class 6
I agree with you Shivansh

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
It can be both A and C as it does not matter whether you join AD and BD first or you locate point C first.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8
Also, the length of BD is not specified.

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
d is the correct answer

Ans 2:

Class : Class 8
jan - 89 less pages mar- 170 less pagesapril- 140 more pagesSo, 89 170-140=119 So, the correct answer is D 119

Ans 3:

Class : Class 4
UU

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7

Ans 3:

Class : Class 4
Yes option C is the right answer

Ans 4:

Class : Class 7

Ans 5:

Class : Class 7
tricky question

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