International Maths Olympiad Forum By SOF Olympiad Trainer - Page 491

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Subject :IMO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 9
All figures have perpendicular lines

Ans 3:

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 4:

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

Ans 5:

Class : Class 4

Ans 6:

Class : Class 5

Ans 7:

Class : Class 4
yes

Ans 8:

Class : Class 3
C

Ans 9:

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

Ans 10:

Class : Class 6
how

Ans 11:

Class : Class 6
it is d

Ans 12:

Class : Class 6
i also got it wrong

Ans 13:

Class : Class 8

Ans 14:

Class : Class 8

Ans 15:

Class : Class 5

Ans 16:

Class : Class 4

Ans 17:

Class : Class 5
How

Ans 18:

Class : Class 9
But what about the curved arrow

Ans 19:

Class : Class 6

Ans 20:

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

Ans 21:

Class : Class 7

Ans 22:

Class : Class 7
CONFUSING QUESTION

Ans 23:

Class : Class 6

Ans 24:

Class : Class 6
It is c

Ans 25:

Class : Class 6

Ans 26:

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 27:

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

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
It should be 0.1666731750

Ans 2:

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

Ans 3:

Class : Class 6
none of the options are correct

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 7
according to bodmas d option is correct

Ans 7:

Class : Class 6

Ans 8:

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 9:

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

Ans 10:

Class : Class 8
none of the options is correct

Ans 11:

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 12:

Class : Class 8
it should be 0.166674175

Ans 13:

Class : Class 9

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 3
TENS

Ans 4:

Class : Class 4

Ans 5:

Class : Class 3
TENS

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
tens

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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
Prashant

Ans 2:

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 6
How is this question done

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 4

Post Your Answer

Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 8

Ans 3: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 4:

Class : Class 8
the correct answer is c

Ans 5:

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 6:

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

Ans 7:

Class : Class 8

Ans 8:

Class : Class 4

Ans 9:

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...

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
Yes B is right

Ans 2:

Class : Class 9
i think B is correct answer

Ans 3:

Class : Class 8
yes,B is the correct answer.Not A.

Ans 4:

Class : Class 9
I do not think that the correct answer is A

Ans 5:

Class : Class 6
B is correct and I am gonna support B

Ans 6:

Class : Class 8
The answer b is correct as the order of congruence is different in every potion but b is correct

Ans 7:

Class : Class 7
both a and b are correct.

Ans 8:

Class : Class 7

Ans 9:

Class : Class 7

Ans 10:

Class : Class 9
B is the correct answer since, the second portion in option A doesn't satisfy the order

Ans 11:

Class : Class 8
Option b will be correct. This question is there in IMO Workbook and there the answer is b only

Ans 12:

Class : Class 7
Answer is supposed to be B not A

Ans 13:

Class : Class 7
B is correct not A

Ans 14:

Class : Class 7
B is correct

Ans 15:

Class : Class 9
B is correct

Ans 16:

Class : Class 7
B IS THE RIGHT ANSWER

Ans 17:

Class : Class 10
According to me, B is the answer....

Ans 18:

Class : Class 6
I also think B is correct

Ans 19:

Class : Class 8
ANSWER B IS ONLY CORRECT

Ans 20:

Class : Class 6
B is correct answer

Ans 21:

Class : Class 7
Option (B) is the correct answer

Ans 22:

Class : Class 7
The correct answer is B. I am sure.

Ans 23:

Class : Class 9
answer is b

Ans 24:

Class : Class 7
B is correct

Ans 25:

Class : Class 7
B is the correct answer. A cannot be the correct answer as

Ans 26:

Class : Class 10

Ans 27:

Class : Class 8
B is the correct answer

Ans 28:

Class : Class 10
B is correct

Ans 29:

Class : Class 8

Ans 30:

Class : Class 8
ans is b

Ans 31:

Class : Class 7

Ans 32: