International Maths Olympiad Forum By SOF Olympiad Trainer - Page 506

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
d

Ans 2:

Class : Class 9
no , its b.

Ans 3:

Class : Class 8
d

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
it is d

Ans 3:

Class : Class 7

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 8

Ans 7:

Class : Class 4
yes

Ans 8:

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

Ans 9:

Class : Class 6
i also got it wrong

Ans 10:

Class : Class 7
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 11:

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

Ans 12:

Class : Class 7
But what about the curved arrow

Ans 13:

Class : Class 7
All figures have perpendicular lines

Ans 14:

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 15:

Class : Class 7

Ans 16:

Class : Class 4

Ans 17:

Class : Class 5
How

Ans 18:

Class : Class 4

Ans 19:

Class : Class 7

Ans 20:

Class : Class 7
CONFUSING QUESTION

Ans 21:

Class : Class 6
how

Ans 22:

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

Ans 23:

Class : Class 6
It is c

Ans 24:

Class : Class 5
D cannot be the answer at all.

Ans 25:

Class : Class 3
C

Ans 26:

Class : Class 5

Ans 27:

Class : Class 5

Ans 28:

Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
none of the options is correct

Ans 2:

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 3:

Class : Class 9

Ans 4:

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 5:

Class : Class 6
Ya Parth Kaushish you are right. Got it Vihaan :) Thanks

Ans 6:

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

Ans 7:

Class : Class 9
it should be 0.166674175

Ans 8:

Class : Class 4
I tried it a 1000 times with calculator it is giving 0.0000515686

Ans 9:

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

Ans 10:

Class : Class 6
It should be 0.1666731750

Ans 11:

Class : Class 7
according to bodmas d option is correct

Ans 12:

Class : Class 6
none of the options are correct

Ans 13:

Class : Class 7
None of the given options is correct .

Ans 14:

Class : Class 6

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
TENS

Ans 2:

Class : Class 5
tens

Ans 3:

Class : Class 4

Ans 4:

Class : Class 3
TENS

Ans 5:

Class : Class 5

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
C

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Subject :IMO    Class : Class 3

Mrs Sharma wrote a 2-digit number on the blackboard. Three students Lalit, Vinay and Prashant said the following statements about that number.
Lalit : "It is a 2-digit number but not the least".
Vinay : "It is the predecessor of least 3-digit number".
Prashant : "It is having three different digits".
If only two of the three students said the truth, who is definitely lying?

A Lalit
B Vinay
C Prashant
D Both (A) and (B)


Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
Prashant

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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 4

Ans 2:

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

Ans 3:

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

Ans 4:

Class : Class 6
How is this question done

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 4

Ans 2:

Class : Class 8
the correct answer is c

Ans 3:

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

Ans 4:

Class : Class 8

Ans 5: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 6:

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

Ans 7:

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 8:

Class : Class 8

Ans 9:

Class : Class 7
C

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