International Maths Olympiad Forum By SOF Olympiad Trainer - Page 648

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 10
because its asking the unshaded figure not the shaded figure

Ans 2:

Class : Class 2
because it is unshaded not shaded.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 9
b is the correct answer

Ans 2:

Class : Class 9
Even I think the answer is B

Ans 3:

Class : Class 5
I THINK B IS THE ANSWER

Ans 4:

Class : Class 5
master admin answer

Ans 5:

Class : Class 5
B is the correct answer and not D

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5

Ans 8:

Class : Class 5
Guys, it's d.. due to some explanations, I clicked b.... also, the people saying b are wrong as d showed up in my test results

Ans 9:

Class : Class 6
I thought A was the answer but the answer is d

Ans 10:

Class : Class 7

Ans 11:

Class : Class 5
why are you silent you dont`t have head see properly then answer me

Ans 12:

Class : Class 5
B is only the answer because it is symetry

Ans 13:

Class : Class 8
The answer is D only

Ans 14:

Class : Class 5
b is not the answer but d because in a symetry , both the sides should be opposite .

Ans 15:

Class : Class 4
It's b guys it's b not d

Ans 16:

Class : Class 8
Plus there is no solution

Ans 17:

Class : Class 8
Bbbbbbbbbbb

Ans 18:

Class : Class 5
why are you writing same sentence

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
D is the answer because it is straight but option B is not correct because over here it is slanting , and there is no such symmetry

Ans 2:

Class : Class 5
But B answer is also the correct answer

Ans 3:

Class : Class 5
sorry

Ans 4:

Class : Class 5
the answer to this question can also be b because option b also has a line of symmetry

Ans 5:

Class : Class 5
But B has slanting line of symmetry.The line of symmetry doesn't means only to be strategy

Ans 6:

Class : Class 8
answer is not b because the lines on top of the letter are horizontal

Ans 7:

Class : Class 5

Ans 8:

Class : Class 6
According to me the correct answer to this question is D] Because it has a line of symmetry from top to bottom

Ans 9:

Class : Class 5

Ans 10:

Class : Class 5
I say B is also a line of symmetry but the correct answer is D

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
option a is correct as angle pqs is epual to angle qsa +angle ast (alternate interior angle)=70 98=28+x x=98-28 x=70 ast+tsb=180(straight angle) 70+y=180 y=180-70 y=110

Ans 2:

Class : Class 7
i agree

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
It's simple addition and subtraction. The total cost of both toys is 52.45+25.32=77.77 You gave him a hundred rupee note. So you gave him 22.23 rupees morethe actual prize which you would recieve as change. So the answer is 22.23 (100-77.77=22.23)

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8
b is totally correct just see the blocks carefully

Ans 3:

Class : Class 6

Ans 4:

Class : Class 7
do not worry sof will make the same mistake on paper

Ans 5:

Class : Class 6
How is the answer B?

Ans 6:

Class : Class 9
All transversal lines look perpendicular

Ans 7:

Class : Class 7
it should be C

Ans 8:

Class : Class 6
AND VERY SILLY MISTAKE TOO

Ans 9:

Class : Class 7
Master answer required

Ans 10:

Class : Class 9

Ans 11:

Class : Class 5
right

Ans 12:

Class : Class 8
It's cofusing

Ans 13:

Class : Class 5
the answer should be C

Ans 14:

Class : Class 5
question itself is wrong

Ans 15:

Class : Class 5
ans 7 is right. perpendicular = 90 degree intersecting straight lines

Ans 16:

Class : Class 5
It is B because the point where EF and AB met it is the centre point of 4 squares making it correct. Guys it is easy but we must know the trick (btw some questions are wrong itself )

Ans 17:

Class : Class 8
B is the correct answer guys, look at the blocks carefully.

Ans 18:

Class : Class 8

Ans 19:

Class : Class 6
The answer is C] GH Because if we count the blocks in AB then, it's4 If we count the blocks in GH then, it's4 THIS S MY FORMULAE

Ans 20:

Class : Class 4
Wrong options SOF.!!!!!! Do you want us to fail

Ans 21:

Class : Class 6
It is B since GH is not perpendicular by the smallest of angles. EF is perpendicular since if you look at the triangles or 5-sided shapes that are made when lines AB and EF come through a square with an angle not equal to 45 degrees, the sizes are the same. This shows that AB and EF are a pair of perpendicular lines.

Ans 22:

Class : Class 6
OMG, the question itself is wrong

Ans 23:

Class : Class 8

Ans 24:

Class : Class 5
we need Sof to clear some of our issues here so SOF pls respond soon

Ans 25:

Class : Class 6

Ans 26:

Class : Class 8
Answer is C

Ans 27:

Class : Class 7
This question is itself wrong..

Ans 28:

Class : Class 7

Ans 29:

Class : Class 6
WHOEVER HAS STUDIED IN GURRUZI 2024 WOULD KNOW THIS ANSWER BUT THE QUESTION ITSELF IS WRONG IT SHOULD BE WHICH ONE OF FOLLOWING IS (NOT) perpendicular to Ab

Ans 30:

Class : Class 6
ANS 33 is correct

Ans 31:

Class : Class 5
the answer is d as the line needs to be a proper slant and only i-j is properly slanted

Ans 32:

Class : Class 5

Ans 33:

Class : Class 8
Ans is C..... Olympiad Trainer please give master answer or solution.

Ans 34:

Class : Class 9
The answer should be C

Ans 35:

Class : Class 6
ans is c

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
d

Ans 2:

Class : Class 10
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

Ans 3:

Class : Class 9
All figures have perpendicular lines

Ans 4:

Class : Class 5

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 5
'c' = correct

Ans 8:

Class : Class 6
It is c

Ans 9:

Class : Class 8
i also got it wrong

Ans 10:

Class : Class 8

Ans 11:

Class : Class 3
C

Ans 12:

Class : Class 7
CONFUSING QUESTION

Ans 13:

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

Ans 14:

Class : Class 9
But what about the curved arrow

Ans 15:

Class : Class 6
yes

Ans 16:

Class : Class 6
it is d

Ans 17:

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 18:

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

Ans 19:

Class : Class 8

Ans 20:

Class : Class 8

Ans 21:

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 22:

Class : Class 5
How

Ans 23:

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

Ans 24:

Class : Class 4

Ans 25:

Class : Class 6
how

Ans 26:

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 27:

Class : Class 5

Ans 28:

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

Ans 29:

Class : Class 7

Ans 30:

Class : Class 6

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