International Maths Olympiad Forum By SOF Olympiad Trainer

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
Correct answer is option B

Ans 2:

Class : Class 10
correct answer is b

Ans 3:

Class : Class 5
our answer is correct but your answer is wrong . The answer should be B

Ans 4:

Class : Class 5
correct answer is B.

Ans 5:

Class : Class 5
the correct answer of this question is B

Ans 6:

Class : Class 6
b as 1st and 2nd have 2 lines of symmetry or more

Ans 7:

Class : Class 6
SOF IS RIGHT THIS TIME GUYS.SO STOP ARGUING ON THIS QUESTION.

Ans 8:

Class : Class 5
The answer should be A. Out of the 4 figures only the square has 2 lines of symmetry. The other figures like the parallelogram and the F have 0 lines of symmetry. The isosceles triangle has one line of symmetry. And the parallelogram has 0 lines on symmetry. On the vertical axis, when we divide it into 2 parts. 1 part is higher at the upper side and the second one is higher at the lower side. The same happens with the horizontal axis.

Ans 9:

Class : Class 5

Ans 10:

Class : Class 5
CORRECT ANSWER IS B.CORRECT ANSWER IS B

Ans 11:

Class : Class 5
Yeah, it should be A.

Ans 12:

Class : Class 10
please check it,its b

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
HOW TO DO THIS ?????????

Ans 2:

Class : Class 6

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
Answer is 62

Ans 2:

Class : Class 8
It is 62 not 52

Ans 3:

Class : Class 8
62

Ans 4:

Class : Class 9
62 is correct

Ans 5:

Class : Class 8
Yes, it is 62

Ans 6:

Class : Class 9
62

Ans 7:

Class : Class 8
62

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Subject :IMO    Class : Class 3

In the given figure, a large rectangle is 60 metres long and 20 metres wide. 2 small rectangles are 30 metres long and 20 metres wide each. Which of the following statements is CORRECT?


A The total length of the large rectangle is twice the total length of the small rectangle.
B The total length of the large rectangle is equal to the total length of the small rectangle.
C The total length of the large rectangle is 30 meters more than the total length of the small rectangle.
D The total length of the large rectangle is equal to 160 meters and the total length of the small rectangle is equal to 100 meters.


option A and C are both correct. If D is the correct option then instead of length you should make it more specific to say length of the boundary. A rectangle by definition has 2 sides length and breadth

Ans 1:

Class : Class 2
sorry I was wrong the ans is d only because total length is here equal to perimeter for this condition

Ans 2:

Class : Class 5
Answer is d.

Ans 3:

Class : Class 3
Both A and C are correct

Ans 4:

Class : Class 3
lenght should be replaced by parameter. ques.wording is wrong

Ans 5:

Class : Class 4
The correct answer is D because the total length of the large rectangle is 160 meters and the total length of the small rectangle is 100 meters

Ans 6:

Class : Class 3
The word should be PERIMETER as the word TOTAL LENGTH [mentioned] can mean the sum of the 2 sides of the rectangle and can not be understood very well.So, according to me the answer can be both A as well as C.

Ans 7:

Class : Class 5
A and C are correct.Please write unambiguous lines. Write boundary or perimeter to be precise.as children view rectangle in length and breadth only.

Ans 8:

Class : Class 2
both A and C are correct

Ans 9:

Class : Class 3
A

Ans 10:

Class : Class 3
Please use the correct wordings, Perimeter. It’s just confusing to deal with word length.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
Answer is option A

Ans 2:

Class : Class 4
whats the difference between option A and B

Ans 3:

Class : Class 5
Both figures A and B are same.So,how can we get to know the difference between them ?

Ans 4:

Class : Class 6
A

Ans 5:

Class : Class 5
Ans is a because in A option the square's lines are dotted just like in the question's image 1

Ans 6:

Class : Class 5
Answer is option A

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
9999

Ans 2:

Class : Class 4
9999

Ans 3:

Class : Class 7
9999

Ans 4:

Class : Class 7
9999

Ans 5:

Class : Class 7
9999

Ans 6:

Class : Class 7
9999

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
A

Ans 2:

Class : Class 4
A

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 1

Ans 2:

Class : Class 3

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