International Maths Olympiad Forum By SOF Olympiad Trainer - Page 619

# User Forum

Subject :IMO    Class : Class 6

Class : Class 5
5 million

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Subject :IMO    Class : Class 6

Class : Class 8

## Ans 2:

Class : Class 6
Answer is periods

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Subject :IMO    Class : Class 7

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
answer is 4. how can it be 8

Class : Class 8
How ??

## Ans 3:

Class : Class 6
The correct answer is 4. It cannot be 8 at all costs. There is a error!!!!!!!!!!

## Ans 4:

Class : Class 7
The answer is 4 definitely!

## Ans 5:

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

## Ans 6:

Class : Class 8
it cannot be 8 at all costs

## Ans 7:

Class : Class 7
Actually it should be 4 or 12

## Ans 8:

Class : Class 5
Everybody look carefully ! We use to be clever know we are not.

Class : Class 6

## Ans 10:

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

Class : Class 5
D.8

## Ans 12:

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

Class : Class 6

Class : Class 6
IT IS 12

## Ans 15:

Class : Class 8
So report the error man

Class : Class 5
B

## Ans 17:

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

Class : Class 9
IT IS 8 ONLY

## Ans 19:

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

## Ans 20:

Class : Class 4
there cannot be 8

Class : Class 8
answer is 4

Class : Class 6
The answer is 4

Class : Class 6
It is 8

Class : Class 7

Class : Class 5

## Ans 26:

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

Class : Class 5
THE ANSWER IS4

## Ans 28:

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 29:

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 30:

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

## Ans 31:

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

Class : Class 4
It should be 4

Class : Class 6

Class : Class 9

Class : Class 8
4

## Ans 36:

Class : Class 7
It is Eight . If you tilt the small angles you will notice that there are eight right angles

## Ans 37:

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

## Ans 38:

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!

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Subject :IMO    Class : Class 5

Class : Class 5
Obtuse

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Subject :IMO    Class : Class 4

Class : Class 4

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Subject :IMO    Class : Class 5

Class : Class 5
Obtuse

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 2

Class : Class 8
A

## Ans 2:

Class : Class 5
D is the right answer.

Class : Class 2
B

Class : Class 2
Why is it d ?

## Ans 5:

Class : Class 5
The answer should be A

## Ans 6:

Class : Class 2
The correct answer is orange Ã°ÂŸÂ˜Â‰

## Ans 7:

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 8:

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

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Subject :IMO    Class : Class 1

## Ans 1:

Class : Class 1
correct answer should be D and not B

## Ans 2:

Class : Class 5
the correct answer is D

Class : Class 2

## Ans 4:

Class : Class 2
Answer is D. Please correct it. Having such blunders will make parents loose confidence on the questions given

Class : Class 6
Ans is D

## Ans 6:

Class : Class 1
The answer should be B

Class : Class 1

## Ans 8:

Class : Class 4
Ans should be D why is it B it is wrong what is going on

## Ans 9:

Class : Class 3
Viha Patel from NCPS Bharuch , class-1Ans is D

Class : Class 1
answer is d.

## Ans 11:

Class : Class 1
Yes, answer is D...

Class : Class 1
answer id D