International Maths Olympiad Forum By SOF Olympiad Trainer - Page 712

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
d

Ans 2:

Class : Class 8
d

Ans 3:

Class : Class 10
no , its b.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 9
All figures have perpendicular lines

Ans 2:

Class : Class 10

Ans 3:

Class : Class 6
it is d

Ans 4:

Class : Class 6
yes

Ans 5:

Class : Class 4

Ans 6:

Class : Class 6
how

Ans 7:

Class : Class 5
A perpendicular line is 90 degrees, last one doesn't count as 90 degrees, so C

Ans 8:

Class : Class 7
Something is wrong here. We have to confirm about it.

Ans 9:

Class : Class 5

Ans 10:

Class : Class 8
i also got it wrong

Ans 11:

Class : Class 7

Ans 12:

Class : Class 5

Ans 13:

Class : Class 3
C

Ans 14:

Class : Class 8
All 4 figure has perpendicular line along perimeter

Ans 15:

Class : Class 5
The answer should be C because in the first figure there are prependicular lines in the bottom in figure 2 there are prependicular lines all four sides near the arrows and in figure 3 there are prependicular lines at the bottom while there are no prependicular lines in figure 4 as they are all acute and obtuse angles so, the answer should be C not D.

Ans 16:

Class : Class 9
It should be C as it is written that we have to find the perpendicular line for each figure, so there are three figures with perpendicular line but if we consider how many perpendicular lines are there in this picture then it should be 4. This answer is absolutely wrong.

Ans 17:

Class : Class 6

Ans 18:

Class : Class 5
it should be a. thats what my supery dupery expert dad said

Ans 19:

Class : Class 10

Ans 20:

Class : Class 9
But what about the curved arrow

Ans 21:

Class : Class 6
It is c

Ans 22:

Class : Class 5
Angles consideration is confusing ....sometime inner and sometime outer angle is consider ....actually SINGLE LINE FIGURE SHOULD BE GIVEN

Ans 23:

Class : Class 6

Ans 24:

Class : Class 9
D cannot be the answer at all.

Ans 25:

Class : Class 7
D is the answer to this question because all the lines are perpendicular and in the 3rd one the bottom lines are perpendicular

Ans 26:

Class : Class 7
CONFUSING QUESTION

Ans 27:

Class : Class 5
How

Ans 28:

Class : Class 8

Ans 29:

Class : Class 8

Ans 30:

Class : Class 7
'c' = correct

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
none of the options are correct

Ans 2:

Class : Class 9
it should be 0.166674175

Ans 3:

Class : Class 8
None of these are correct I have done in calculator

Ans 4:

Class : Class 7
I tried it a 1000 times with calculator it is giving 0.0000515686

Ans 5:

Class : Class 9
None of the given options is correct .

Ans 6:

Class : Class 9
Ya Parth Kaushish you are right. Got it Vihaan :) Thanks

Ans 7:

Class : Class 5
Answer given is correct:0.0001289 - (0.0000000274 x 1293) 0.0000419032=(0.0001289 - 0.0000354282) 0.0000419032=0.0000934718 0.0000419032=0.00011353750

Ans 8:

Class : Class 8
none of the options is correct

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
none of the options are correct and the solution makes no sense the correct answer is 0.0000515686sof is glitched

Ans 11:

Class : Class 6
the correct answer is going to be 0.0000515686 . I have tried it 10 times. Its given wrong pls correct it SOF

Ans 12:

Class : Class 7

Ans 13:

Class : Class 9
correct answer is 0.0000515686. So, none of the provided options are correct.

Ans 14:

Class : Class 9

Ans 15:

Class : Class 6
It should be 0.1666731750

Ans 16:

Class : Class 7
according to bodmas d option is correct

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 2
tens

Ans 2:

Class : Class 5

Ans 3:

Class : Class 3
TENS

Ans 4:

Class : Class 8

Ans 5:

Class : Class 4
C

Ans 6:

Class : Class 4
C

Ans 7:

Class : Class 4

Ans 8:

Class : Class 3

Ans 9:

Class : Class 3
TENS

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
its given c as the ans in the solutions pls explain how

Ans 2:

Class : Class 8

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 6
How is this question done

Ans 3:

Class : Class 5

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6
Spaces is " ", the value disappeared after I posted the comment

Ans 6:

Class : Class 6
There are four equations P Q R=75; Q R S=90; P R S=100; Q S P=80Add them up all. You will get 3P 3Q 3R 3S=345. This means P Q R S=115We can replace the value of P Q R=75 in the above to get the value of S which would be 40. From the second equation, we can get the total value of Q R 40=90 as 50

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 10

Ans 3:

Class : Class 4

Ans 4:

Class : Class 5
correct answer is C as 5/6*6/6= 30/36 but resultant fraction will always be 5/6

Ans 5:

Class : Class 7
The correct answer is a because 1/2 < 2/3 < 3/4 < 4/5 < 5/6 < 6/7 < 7/8 < 8/9...

Ans 6:

Class : Class 8
in my opinion both a and c are correct

Ans 7:

Class : Class 7
my answer is d

Ans 8:

Class : Class 8
the correct answer is c

Ans 9:

Class : Class 10

Ans 10: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 11:

Class : Class 3
If they tell increase by addition or multiplication , we'll know whether answer is C or A otherwise both answers are right

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