International Maths Olympiad Forum By SOF Olympiad Trainer - Page 687

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Subject :IMO    Class : Class 5

Ans 1:

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

Ans 2:

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

Ans 3:

Class : Class 8
E has horizontal line of symmetry

Ans 4:

Class : Class 5

Ans 5:

Class : Class 5
5

Ans 6:

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

Ans 7:

Class : Class 5
Answer should be A

Ans 8:

Class : Class 6

Ans 9:

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

Ans 10:

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

Ans 11:

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

Ans 12:

Class : Class 5

Ans 13:

Class : Class 6

Ans 14:

Class : Class 5

Ans 15:

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

Ans 16:

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

Ans 17:

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

Ans 18:

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

Ans 19:

Class : Class 8
letter e is also symmetrical

Ans 20:

Class : Class 5
Its b!

Ans 21:

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

Ans 22:

Class : Class 6
I agree with virat

Ans 23:

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

Ans 24:

Class : Class 5
HAS TO BE A

Ans 25:

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

Ans 26:

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 27:

Class : Class 5
master . admmin to answer

Ans 28:

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 29:

Class : Class 5
it is 4 i n o and

Ans 30:

Class : Class 6

Ans 31:

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

Ans 32:

Class : Class 9
Letter E is also symmetrical

Ans 33:

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

Ans 34:

Class : Class 6
S

Ans 35:

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 36:

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

Ans 37:

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

Ans 38:

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

Ans 39:

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

Ans 40:

Class : Class 6
S

Ans 41:

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 42:

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

Ans 43:

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 44:

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 45:

Class : Class 8
Ans is 4

Ans 46:

Class : Class 5

Ans 47:

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 48:

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

Ans 49:

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

Ans 50:

Class : Class 6
Answer is a

Ans 51:

Class : Class 5
A , You all are right

Ans 52:

Class : Class 3
The answer should be 5!

Ans 53:

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 54:

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

Ans 55:

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 56:

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

Ans 57:

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 58:

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

Ans 59:

Class : Class 7
Wrong question the answer is 5

Ans 60:

Class : Class 5

Ans 61:

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 62:

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

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9

Ans 3:

Class : Class 9

Ans 4:

Class : Class 10

Ans 5:

Class : Class 8

Ans 6:

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 7:

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

Ans 8:

Class : Class 10

Ans 9:

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 10:

Class : Class 5

Ans 11:

Class : Class 9

Ans 12:

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

Ans 13:

Class : Class 9

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Subject :IMO    Class : Class 1

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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 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 2:

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

Ans 3:

Class : Class 8

Ans 4:

Class : Class 4
the answer is either B or C

Ans 5:

Class : Class 8
everyone is right

Ans 6:

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

Ans 7:

Class : Class 8

Ans 8:

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

Ans 9:

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

Ans 10:

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 11:

Class : Class 4
c

Ans 12:

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

Ans 13:

Class : Class 4

Ans 14:

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 15:

Class : Class 7
c

Ans 16:

Class : Class 6
The correct answer is c

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
Option A

Ans 2:

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.

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Subject :IMO    Class : Class 9

Ans 1:

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.

Ans 2:

Class : Class 10
240 grams

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Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 7
77 is correct answer.

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
ANSWER IS 13. FROM PATTERN 1 WE GET TO KNOW THAT THE PRODUCT OF SQUARE 1 AND 2 SUBTRACTED BY THE THIRD GIVES OUT THE NUMBER IN TRIANGLE.FOR INSTANCE, 5*4-8=12 3*5-4=11 4*5-7=13.

Ans 2:

Class : Class 7

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Subject :IMO    Class : Class 7

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