International Maths Olympiad Forum By SOF Olympiad Trainer - Page 687

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Subject :IMO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 5

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
walala

Ans 2: (Master Answer)

Class : Class 1
The correct answer is A.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
answer is A only

Ans 2:

Class : Class 3
25 15=40A is the answer

Ans 3:

Class : Class 6

Ans 4:

Class : Class 10
A

Ans 5:

Class : Class 4
nope einstein will say 35

Ans 6:

Class : Class 4

Ans 7:

Class : Class 9
Answer is A part

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 9
this doesn't make sense E is also symmetrical

Ans 2:

Class : Class 5
55555!!!!!:(

Ans 3:

Class : Class 5
5

Ans 4:

Class : Class 6
S

Ans 5:

Class : Class 3
The answer should be 5!

Ans 6:

Class : Class 5
how is N symmetrical!!!!!

Ans 7:

Class : Class 8
Ans is 4

Ans 8:

Class : Class 6
S

Ans 9:

Class : Class 9
I THINK IT IS A. E IS SYMMETRICAL. But Jyoti is also right

Ans 10:

Class : Class 7
6 letters are symmetrical. Letters S, I, N, A, O, E

Ans 11:

Class : Class 5
O has infinate lines of symmetry, however in the question it has given „EXACTLY 2 lines of symmetry“

Ans 12:

Class : Class 3
No dragonite you are wrong, only 5 letters in the word are symmetrical not 6 : I ,N, A, O, E

Ans 13:

Class : Class 6
We need letters with EXACTLY TWO (2) lines of symmetry. Although "O" has infinite lines of symmetry, LOOK CLOSE WITH YOUR EYES PEELED, it is an oval shape, so only 2 lines.

Ans 14:

Class : Class 5

Ans 15:

Class : Class 7
its true.answer should be six !!!

Ans 16:

Class : Class 9
Letter E is also symmetrical

Ans 17:

Class : Class 5

Ans 18:

Class : Class 5
MASTER ANSWER!!!!!5 is correct because E also has a horizontal symmetrical line.

Ans 19:

Class : Class 5

Ans 20:

Class : Class 5

Ans 21:

Class : Class 6
I agree with virat

Ans 22:

Class : Class 6
Answer should be A. S is symmetrical.

Ans 23:

Class : Class 3
E is not symmetrical because if we see the gap the upper one has a small gap and the lower one has a large gap. That's why there is no symmetriy

Ans 24:

Class : Class 5
master . admmin to answer

Ans 25:

Class : Class 7
letter E is also an symmetrical on horizontal axis.

Ans 26:

Class : Class 7
The answer shoud be B)1 because O has infinite lines of symmetry and also check the solution and stop being dumb.Also E has also 1 line of symmetry but SOF has given the question.Please read the queston carefully.And they have also given an image so 5 would not be the answer.MASTER ANSWER

Ans 27:

Class : Class 3
Oh E letter is not symmetrical because the gap between to curves is not exactly same focus on E

Ans 28:

Class : Class 5
0 alphabets of *exact* two lines of symetry

Ans 29:

Class : Class 5
A , You all are right

Ans 30:

Class : Class 5
answer is 4 because they asked for atleast 1 symmetry line

Ans 31:

Class : Class 7
I agree with Bharat and Jyoti... e isn't symmetrical

Ans 32:

Class : Class 7
How r we supposed to know such a small difference E is symetrical

Ans 33:

Class : Class 6
I agree with Bharat and Jyoti, E is not symmetrical. I know that whenever we write E, like in the font in which I am writing now, it is symmetrical, but as per the question given, the font is different, and so, the letter E is not symmetrical. The curved gaps on top and bottom are very different and they are visible by the naked eye.

Ans 34:

Class : Class 9
options are wrong.6 is the answer

Ans 35:

Class : Class 7
letter E is also an symmetrical on horizontal axis.

Ans 36:

Class : Class 6
S has no line of symmetry, neither horizontal nor vertical ,and it cant be symmetrical by a slanting line.E is also not symmetrical by a horizontal line because the gaps are not equal between them as shown in the picture

Ans 37:

Class : Class 9
Guys Jyoti mehta from vibgyor high is correct because you see E the gapis lees in one and more in 2 one

Ans 38:

Class : Class 6
5- S,I,N,A,O

Ans 39:

Class : Class 5
Answer should be A

Ans 40:

Class : Class 6

Ans 41:

Class : Class 8
E has horizontal line of symmetry

Ans 42:

Class : Class 6
S and E are symmetrical but in this font it is not

Ans 43:

Class : Class 5
SOF Olympiad Trainer is wrong. Look carefully. E is symmetrical. I has horizontal line of symmetry

Ans 44:

Class : Class 5
it is 4 i n o and

Ans 45:

Class : Class 8
The answer is clearly 5=I,N,A,O,E

Ans 46:

Class : Class 6

Ans 47:

Class : Class 4
EEEEEEEEEEEEEEEEE.....................!!!!!!!!!!???????????

Ans 48:

Class : Class 5
Sure shot...... all the 5 letters - I,N,A,O,E... All these letters are symmetrical.... Wrong answer uploaded by the website..... Dissapointed....

Ans 49:

Class : Class 6

Ans 50:

Class : Class 7
no its bstop being dumbits b because only i has two lines of symetryo has infinite lines of symetry this is a master answer stop writing 25 ans all were wrongask sof for help please!

Ans 51:

Class : Class 5
yes this sof is really bad and mad

Ans 52:

Class : Class 5

Ans 53:

Class : Class 5
the answer is b - 5 = i,n,a,o,e

Ans 54:

Class : Class 6
1 will be the correct answer because O has infinite lines of symmetry and the question said that how many of the following figures have exactly 2 lines of symmetry. The perfect answer and explanation.

Ans 55:

Class : Class 5
HAS TO BE A

Ans 56:

Class : Class 6
Answer is a

Ans 57:

Class : Class 5
Its b!

Ans 58:

Class : Class 7
No! Letter E is not symmetrical as the upper side of the E has lesser gap than that of its lower side. Therefore the ans is B.

Ans 59:

Class : Class 7
Wrong question the answer is 5

Ans 60:

Class : Class 8
E is a symmetrical letter, but in this font it is not because of width on top and bottom

Ans 61:

Class : Class 5
Let's analyze each letter in the word "MOTIVATE" to determine if it has exactly two lines of symmetry:M: This letter has only one line of symmetry, which is a vertical line passing through the middle of the letter.O: This letter has an infinite number of lines of symmetry, as any line passing through its center will divide it into two identical halves.T: This letter has one line of symmetry, which is a horizontal line passing through the middle of the letter.I: This letter has two lines of symmetry, which are a vertical line passing through the middle of the letter and another passing from the top.V: This letter has one line of symmetry, which is a vertical line passing through the top of the letter.A: This letter has one line of symmetry, which is a vertical line passing through the middle of the letter.T: This letter has one line of symmetry, which is a horizontal line passing through the middle of the letter.E: This letter has zero lines of symmetry, as there is a small gap between the first top two horizontal lines and a big gap between the last two horizontal lines.Also, in the question, SOF has clearly mentioned "which have exactly two lines of symmetry" This line proves that we need to find such an answer which supports and goes in agreement with the question.Therefore, only one letter in the word "MOTIVATE" have exactly two lines of symmetry, which is the "I" letter.I request SOF to correct the answer and give us the missing mark.

Ans 62:

Class : Class 8
letter e is also symmetrical

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 9
HInt Hint: Square and square root the first term and for the second term write it in the form of (root2-1)^2 Then the final answer comes 1 '

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9
can anybody please send me the written solution of the question ?

Ans 4:

Class : Class 8

Ans 5:

Class : Class 10

Ans 6:

Class : Class 10

Ans 7:

Class : Class 9

Ans 8:

Class : Class 9
First Term= square and square root = root 2Second term = square root of (root2 -1)^2 = root2 -1The difference of first and second term = 1

Ans 9:

Class : Class 9
Can anybody please post the written solution of this sum?

Ans 10:

Class : Class 5

Ans 11:

Class : Class 9

Ans 12:

Class : Class 9

Ans 13:

Class : Class 9

Post Your Answer

Subject :IMO    Class : Class 1

Post Your Answer

Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A. There are 9 circles as well as triangles.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
I agree D should be answer. 4 - 5/8

Ans 2:

Class : Class 4
(Master answer) the correct answer is C.

Ans 3:

Class : Class 9
ANSWER MUST BE OPTION D , AS WHEN WE SUBTRACT 5/8 FROM 4 THEN WE WILL GET 27/8 WHICH IS EQUAL TO 3 3/8. THE METHOD IS BY DOING CRISS-CROSS MULTIPLICATION.

Ans 4:

Class : Class 4
I think it should be option C as , the question is asking how much is left with her when she has baked. She used 5/8 of the flour to bake and 5/8 of 4kg is 2 ½ kg . 4kg take away 2½ kg equals 1½ kg. So it should be option C.

Ans 5:

Class : Class 4
how can it be c///

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6
The correct answer is c

Ans 8:

Class : Class 8
everyone is right

Ans 9:

Class : Class 8

Ans 10:

Class : Class 4
the answer is either B or C

Ans 11:

Class : Class 7
c

Ans 12:

Class : Class 10
b is the right answer.FIRST CUT THE DENOMINATOR.THEN CONVERT IT INTO A MIXED FRACTION.YOU WILL GET THE ANSWER

Ans 13:

Class : Class 4
c

Ans 14:

Class : Class 8

Ans 15:

Class : Class 8
How is it C C C ??????

Ans 16:

Class : Class 8
Hi Mridul you are right you know I was in Shishukunj for 2 years D D D D D Master Answer explain as this question may come in IMO IMO IMO

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
It think this is a problem with the code. It worked properly for me. If you are facing further problems you can report the question. P.S- I am not part of the technical team.

Ans 2:

Class : Class 7
Option A

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 10
240 grams

Ans 2:

Class : Class 9
The seven pieces consist of 6 smaller equal pieces and one half cake piece. Weight of each small piece = 20 g. So, total weight of the cake = [2 x (20 x6)]g= 240 g.

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