International Maths Olympiad Forum By SOF Olympiad Trainer - Page 712

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
a

Ans 2:

Class : Class 7
a

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6

Ans 5:

Class : Class 5
The option is A

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
What is the meaning of this question? I thought a period means a full stop?

Ans 2:

Class : Class 6
Answer is periods

Ans 3:

Class : Class 9

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
80,100

Ans 2:

Class : Class 10
the angles are 80 degree and 100 degree. Method- 4:5=4x and 5x , 4x+5x=180 , 9x=180, x=180/9, x=20, therefore, 4:5= 4*20and 5*20 4:5=80 and 100

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
It should be 4

Ans 3:

Class : Class 6
confusing but obvious

Ans 4:

Class : Class 9
So report the error man

Ans 5:

Class : Class 4
No ,the answer is 8 because those small angles are also right angle

Ans 6:

Class : Class 5
THE ANSWER IS4

Ans 7:

Class : Class 9

Ans 8:

Class : Class 9
IT IS 8 ONLY

Ans 9:

Class : Class 7
The answer is 4

Ans 10:

Class : Class 5

Ans 11:

Class : Class 6

Ans 12:

Class : Class 8
4

Ans 13:

Class : Class 8
The correct answer is 4. It cannot be 8 at all costs. There is a error!!!!!!!!!!

Ans 14:

Class : Class 6
IT IS 12

Ans 15:

Class : Class 7
Very good Nilarka Pahari and Khushie. Friends , the correct answer is B only. Just try to see . Tilt your head to your right and try to see the cuts at the end of the ribbons . You will find the error of your own. Did you find that? I know that only 5 to 37 percent of you can nfind the eight angles. Be very accurate and intelligent. I also did the same mistake while giving the test . Please look carefully!

Ans 16:

Class : Class 6
I think soumyaraj Roy is correct as there are no other angles that are exactly 90 degrees.

Ans 17:

Class : Class 9
it cannot be 8 at all costs

Ans 18:

Class : Class 7
Thank you very much friends if you all co-operate me, Nilarka and Khushie!

Ans 19:

Class : Class 6

Ans 20:

Class : Class 7
The answer is obviously 4.There cannot be 8 at all costs

Ans 21:

Class : Class 5
4/8 votei vote 4 they have done wrong with no solution

Ans 22:

Class : Class 8
How ??

Ans 23:

Class : Class 5
Look carefully, even I got to know the answer after reading the comments

Ans 24:

Class : Class 7
It is 8

Ans 25:

Class : Class 6
The answer is D(8) because if we look at the V from a Tilted angle then it is a 90 degree angle. 4 V4 right angles4 4= 8

Ans 26:

Class : Class 5
D.8

Ans 27:

Class : Class 8
Actually it should be 4 or 12

Ans 28:

Class : Class 6
THE ANSWER IS 12 AS IF YOU LOKE AT ACUTE ANGLES IN THE EXTERIOR YOU CAN SEE 2 RIGHT ANGLES

Ans 29:

Class : Class 6
On the outside, we see 4 right angles easily. But if you turn your device 90 degrees left/right, you will see that the angle formed by the sharp edges of the figure also measures 90 degrees. It is just not visible due to the angle you look at it.

Ans 30:

Class : Class 7
The answer is 4 definitely!

Ans 31:

Class : Class 6
Everybody look carefully ! We use to be clever know we are not.

Ans 32:

Class : Class 7

Ans 33:

Class : Class 9
It cannot be 8 at all costs There is an error in this question

Ans 34:

Class : Class 9
It is Eight . If you tilt the small angles you will notice that there are eight right angles

Ans 35:

Class : Class 6
answer is 4. how can it be 8

Ans 36:

Class : Class 6
No, it is 8. You can see 4 of them easily. The other four are hidden between the sharp edges of the figure. Tilt it 2 find out.

Ans 37:

Class : Class 4
there cannot be 8

Ans 38:

Class : Class 8
answer is 4

Ans 39:

Class : Class 5
B

Ans 40:

Class : Class 5

Ans 41:

Class : Class 4
Look closely. The answer is 8. If you look at the cuts in the ribbon which looks like a V at the top, you can see the right angle by tilting your device. Same follows with the other cuts

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 2

Ans 1:

Class : Class 9
all of you are wrong ............................king o fruits is mango not apple ...............................so answer is (D) ..............................because mango is orange .............................i know it because i am in class7

Ans 2:

Class : Class 5
The answer should be A

Ans 3:

Class : Class 2
B

Ans 4:

Class : Class 2
king of fruits is mango and in the problem pineapple means mango so ans shld be b.

Ans 5:

Class : Class 2
The correct answer is orange 😉

Ans 6:

Class : Class 2
Why is it d ?

Ans 7:

Class : Class 8
A

Ans 8:

Class : Class 5
D is the right answer.

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