International Maths Olympiad Forum By SOF Olympiad Trainer - Page 768

User Forum

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
a

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8

Ans 4:

Class : Class 7
a

Ans 5:

Class : Class 5
The option is A

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 6
Answer is periods

Ans 3:

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

Post Your Answer

Subject :IMO    Class : Class 7

Ans 1:

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

Ans 2:

Class : Class 7
80,100

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

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 2:

Class : Class 7
It is 8

Ans 3:

Class : Class 8
answer is 4

Ans 4:

Class : Class 9

Ans 5:

Class : Class 5
It should be 4

Ans 6:

Class : Class 5
B

Ans 7:

Class : Class 5
THE ANSWER IS4

Ans 8:

Class : Class 6

Ans 9:

Class : Class 6
IT IS 12

Ans 10:

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 11:

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 12:

Class : Class 7

Ans 13:

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 14:

Class : Class 6

Ans 15:

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

Ans 16:

Class : Class 7
The answer is 4

Ans 17:

Class : Class 8
Actually it should be 4 or 12

Ans 18:

Class : Class 6
confusing but obvious

Ans 19:

Class : Class 5

Ans 20:

Class : Class 9
it cannot be 8 at all costs

Ans 21:

Class : Class 8
How ??

Ans 22:

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

Ans 23:

Class : Class 8
4

Ans 24:

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

Ans 25:

Class : Class 5

Ans 26:

Class : Class 5
The correct answer is 4. It cannot be 8 at all costs. There is a error!!!!!!!!!!

Ans 27:

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

Ans 28:

Class : Class 4
there cannot be 8

Ans 29:

Class : Class 7
The answer is 4 definitely!

Ans 30:

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 31:

Class : Class 9
So report the error man

Ans 32:

Class : Class 6

Ans 33:

Class : Class 9
IT IS 8 ONLY

Ans 34:

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

Ans 35:

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

Ans 36:

Class : Class 5
D.8

Ans 37:

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

Ans 38:

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

Ans 39:

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

Ans 40:

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

Ans 41:

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

Post Your Answer

Subject :IMO    Class : Class 5

Post Your Answer

Subject :IMO    Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 5

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 2

Ans 1:

Class : Class 5
The answer should be A

Ans 2:

Class : Class 5
D is the right answer.

Ans 3:

Class : Class 2
B

Ans 4:

Class : Class 8
A

Ans 5:

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 6:

Class : Class 2
Why is it d ?

Ans 7:

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

Ans 8:

Class : Class 2
The correct answer is orange 😉

Post Your Answer