International Maths Olympiad Forum By SOF Olympiad Trainer - Page 507

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
It is A. Has 2/4 shaded 3/4 Shaded

Ans 2:

Class : Class 5

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
Guys its just a typo. They put 5 instead of 6.

Ans 2:

Class : Class 3
you all are right it is showing 392 but when i check in calculator the ans is

Ans 3:

Class : Class 5
The answer should be 6000

Ans 4:

Class : Class 5
it should be 5000

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5

Ans 8:

Class : Class 5
it should be 6000.

Ans 9:

Class : Class 5
when we multiply the answer is 6045.0 , which rounds up to 6000. Resulting that the SOF community has given the answer wrong.

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
it should be 6000

Ans 12:

Class : Class 7
The answer is 6000 but SOF is showing 5000 as. the answer .

Ans 13:

Class : Class 3
this sof question is idiot

Ans 14:

Class : Class 5
it should be 6000

Ans 15:

Class : Class 5
sum is 390 they are showing 392

Ans 16:

Class : Class 7
i thought to round off down it came 5000 but i got right answer being wrong

Ans 17:

Class : Class 7
the answer is coming as 6045. when we round it off, it is 6000 and sof is getting 392 and round off is getting 5000. HOW IS IT POSSIBLE?

Ans 18:

Class : Class 3
Yes the answer should be 6000. Check it

Ans 19:

Class : Class 5
guys when the questions are wrong you should always go with the closest answer. I have done this many times

Ans 20:

Class : Class 7
yes 6000

Ans 21:

Class : Class 5
It should be 6000. 123.5 266.5 = 390.0 . Now multiply 390.0* 15.5 = 6045. Rounding to thousand = 6000

Ans 22:

Class : Class 8

Ans 23:

Class : Class 10
question needs to be corrected

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
The answer should be 28

Ans 2:

Class : Class 8
yes

Ans 3:

Class : Class 7
please check the answer.it should be 28 sq.cm

Ans 4:

Class : Class 7
ans is 28

Ans 5:

Class : Class 6
Ans should be A because it is even mentioned in solution.Please check the answer.

Ans 6:

Class : Class 10
if its less then 1/2 then it should be 0...the ANSWER IS A

Ans 7:

Class : Class 6
It should be 28

Ans 8:

Class : Class 6
They say the answer should be slightly higher than 28, which I agree with, but 34 isn't slightly greater—the difference is 6!

Ans 9:

Class : Class 6
ans should be 28

Ans 10:

Class : Class 5
Another mistake by SOF. Two mistakes in one exam! Correct option is A because if we take 1 square as 1 sq. cm, then two less than half arcs won't add up to 6 but rounded off to 0. My marks should be 55, not 53

Ans 11:

Class : Class 6

Ans 12:

Class : Class 6
28 should be the answer then

Ans 13:

Class : Class 9

Ans 14:

Class : Class 8

Ans 15:

Class : Class 7

Ans 16:

Class : Class 6
of course 28

Ans 17:

Class : Class 6

Ans 18:

Class : Class 4
yes it is 28 cm2

Ans 19:

Class : Class 7
ans is 28

Ans 20:

Class : Class 9
34 is 6 greater than 28 so two small arcs wont add up to that amount

Ans 21:

Class : Class 7
I agree with Mukil

Ans 22:

Class : Class 6
the answer is 28

Ans 23:

Class : Class 8

Ans 24:

Class : Class 6
Explain questions no 7

Ans 25:

Class : Class 4
then it should be exact 28 not slightly grater then it

Ans 26:

Class : Class 6
They say the answer should be slightly higher than 28, which I agree with, but 34 isn't slightly greater—the difference is 6!

Ans 27:

Class : Class 7

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 10

Ans 2:

Class : Class 6

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 4
It is your mistake bhavya

Ans 3:

Class : Class 5
I have given the answer but it is showing that I have not given the answer

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Option A)

Ans 2:

Class : Class 5
A.

Ans 3:

Class : Class 5
A

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