International Maths Olympiad Forum By SOF Olympiad Trainer - Page 146

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 9
There are five 8's in the 35 decimal places of pi, therefore 5/35 in the reduced form will provide 1/7. Option D is the correct answer.

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Subject :IMO    Class : Class 2

Alisha and her friend have some shapes given below.

Alisha thought of the shapes that are similar in a certain way as follows:

On what basis did Alisha distinguish the given shapes?

A The shapes are made up of only four sides.
B The shapes are made up of only straight lines.
C The shapes are made up of only curved lines.
D The shapes are made up of more than four sides.


b] the shapes are only made up of straight lines

Ans 1:

Class : Class 2

Ans 2:

Class : Class 4
Alisha chooses the shapes which are only made up of straight lines.

Ans 3:

Class : Class 4

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Subject :IMO    Class : Class 2

Ans 1:

Class : Class 5

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
Answer is option (D), because the figure contains 5 triangles,1 square and 1 rectangle... Thanks:D

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
yes dddddd

Ans 2:

Class : Class 7
Yeah it's D

Ans 3:

Class : Class 9
yes I agree with Amika Rustagi. The answer is clearly option d , not c , because option C can be a open cuboidal box , so it can be correct , while , option d is clearly wrong because you cannot even make somethig out of it with the help of net

Ans 4:

Class : Class 4
Answer needs to be the Option D, not the Option C.

Ans 5:

Class : Class 7
both c and d are wrong

Ans 6:

Class : Class 8
both c and d are wrong, a lot of ques are wrong in this test

Ans 7:

Class : Class 7
c and d are wrong

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
B. the sum of the last two digits is divisible by 4

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
d. 25

Ans 2:

Class : Class 9
b.22

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
but i found there is 26 triangles

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Subject :IMO    Class : Class 2

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Subject :IMO    Class : Class 7

M, N, O, P, Q, R, S and T are sitting in a row facing North.
(i) S is at 3rd position from the left end.
(ii) P is the neighbour of Q and M. M is at one of the ends.
(iii) The person who is 4th to the left of N is at the other end.
(iv) T is not a neighbour of N who is to the immediate right of O.
If R is at the first position, then who two are in the middle?

AN, S
BP, Q
CO, N
DO, Q


According to your arrangement (iv) point is not satisfied. T is not to the immediate right of O.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
C. A simple curve is one which cross itself.

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