International Maths Olympiad Forum By SOF Olympiad Trainer - Page 726

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

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

Ans 3:

Class : Class 5
answer is A only

Ans 4:

Class : Class 4
nope einstein will say 35

Ans 5:

Class : Class 10
A

Ans 6:

Class : Class 6

Ans 7:

Class : Class 9
Answer is A part

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5

Ans 3:

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

Ans 4:

Class : Class 9
Letter E is also symmetrical

Ans 5:

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

Ans 6:

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 7:

Class : Class 5

Ans 8:

Class : Class 3
The answer should be 5!

Ans 9:

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

Ans 10:

Class : Class 7
Wrong question the answer is 5

Ans 11:

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

Ans 12:

Class : Class 7

Ans 13:

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 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

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

Ans 18:

Class : Class 5
5

Ans 19:

Class : Class 5
HAS TO BE A

Ans 20:

Class : Class 8
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 21:

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

Ans 22:

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

Ans 23:

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 24:

Class : Class 5

Ans 25:

Class : Class 5
A , You all are right

Ans 26:

Class : Class 7
0 alphabets of *exact* two lines of symetry

Ans 27:

Class : Class 6
S

Ans 28:

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

Ans 29:

Class : Class 8
Ans is 4

Ans 30:

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

Ans 31:

Class : Class 5
it is 4 i n o and

Ans 32:

Class : Class 5
master . admmin to answer

Ans 33:

Class : Class 5
Its b!

Ans 34:

Class : Class 6
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 35:

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

Ans 36:

Class : Class 5

Ans 37:

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

Ans 38:

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

Ans 39:

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 40:

Class : Class 7
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 41:

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

Ans 42:

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

Ans 43:

Class : Class 5

Ans 44:

Class : Class 8
E has horizontal line of symmetry

Ans 45:

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

Ans 46:

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 47:

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 48:

Class : Class 6
S

Ans 49:

Class : Class 8
letter e is also symmetrical

Ans 50:

Class : Class 7

Ans 51:

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

Ans 52:

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

Ans 53:

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 54:

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

Ans 55:

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 56:

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

Ans 57:

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

Ans 58:

Class : Class 5
Answer should be A

Ans 59:

Class : Class 6
I agree with virat

Ans 60:

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

Ans 61:

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

Ans 62:

Class : Class 6
Answer is a

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 8

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

Class : Class 9

Ans 6:

Class : Class 10

Ans 7:

Class : Class 5

Ans 8:

Class : Class 9

Ans 9:

Class : Class 9

Ans 10:

Class : Class 10

Ans 11:

Class : Class 9

Ans 12:

Class : Class 9

Ans 13:

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

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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 6
The correct answer is c

Ans 2:

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

Ans 3:

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 4:

Class : Class 4
c

Ans 5:

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 6:

Class : Class 8
everyone is right

Ans 7:

Class : Class 4

Ans 8:

Class : Class 8

Ans 9:

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

Ans 10:

Class : Class 8

Ans 11:

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 12:

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 13:

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

Ans 14:

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

Ans 15:

Class : Class 4
the answer is either B or C

Ans 16:

Class : Class 7
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 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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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
77 is correct answer.

Ans 3: (Master Answer)

Class : Class 1
The correct answer is A.

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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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