International Maths Olympiad Forum By SOF Olympiad Trainer - Page 141

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
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 7

Ans 2:

Class : Class 6
but i found there is 26 triangles

Ans 3:

Class : Class 6
d. 25

Ans 4:

Class : Class 8
b.22

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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 8
C. A simple curve is one which cross itself.

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
yes it is decagon with 10 sides

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Subject :IMO    Class : Class 7

In the given figure, PQRS is a parallelogram. U is the midpoint of PT and PT ⊥ SR. If PT = 24 cm and SR = 30 cm, then find the area of the given figure.


A276 cm2
B342 cm2
C492 cm2
D540 cm2


This question can be very tricky but it is easy to solve if you know how to find the area of the rhombus.Step 1 - to find the area of the bottom rhombus, you need to do 1/2 * 24 * 30.Step 2 - now you need to find the area of the top triangle which will be equal to half of the rhombus since all the angles are equal.Step 3 - therefore the area of the triangle will be 180 and the area of the rhombus will be 360. So the area of the final figure will be 360 180 that is 540.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6
It is A because the answer written in solution matches option A.

Ans 4:

Class : Class 6
The correct answer is A instead of B.

Ans 5:

Class : Class 6
It is telling in the solution that it is B. But when I checked it the correct answer was A. So the correct answer is A.

Ans 6:

Class : Class 4

Ans 7:

Class : Class 6
Correct answer is A not B

Ans 8:

Class : Class 4

Ans 9:

Class : Class 4
it is a because the answer in solution is a

Ans 10:

Class : Class 4
ans is a not b

Ans 11:

Class : Class 4

Ans 12:

Class : Class 6
bhai answer sahi karlo option a hoga b nhi hoga. thoda logic lagao.mein class 4th mein hun bologe toh main sof ke teachers ko tution de dunga

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