International Maths Olympiad Forum By SOF Olympiad Trainer - Page 304

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 8
1+1

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 9
This question is has a flaw. Depending on the direction of the fold, the answer differs.

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Class : Class 8

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Subject :IMO    Class : Class 4

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Class : Class 4

Ans 2:

Class : Class 5
The question-answer is incorrect. Either the perimeter should be 52cm or the answer should be 0 with the given perimeter as 50cm.

Ans 3:

Class : Class 5
yes,this question is wrong.i request the master anwser.

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Class : Class 3

Ans 5:

Class : Class 4
The perimeter should be either 52 or 50. Y-x should be 0

Ans 6:

Class : Class 2
The perimeter seems incorrect. It should be 52 and not 50

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Subject :IMO    Class : Class 5

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Class : Class 5

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Subject :IMO    Class : Class 2

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Class : Class 3
https://www.sofolympiadtrainer.com/user/home/usertestDetailsOfTest

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Class : Class 3
What is that sir above me

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 9
can someone pls tell how to exactly solve the question, i got the answer till 8/3 in rhs. after that i dont understand how to do

Ans 2:

Class : Class 8
You all may have done squaring on both sides. Now what you got it a² b²-2(because ab of third term cancel out)=64/9(8/3 square)(we are supposing a as root 3 x and b as1/ root 3 x)As the identity for (a b)² is a² b² 2(remeber ab of 2ab cancels out in all steps in this question),we need to add 4 on both side, and then square root the whole equationWe get a² b² 2=100/9. And on rooting, as both 10/9 and -10/9(if you are having problem understanding this then you must read some 9th class chapter's basic.)So option c is the answer

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Class : Class 6

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Class : Class 5

Ans 5:

Class : Class 9
A- 10/3

Ans 6:

Class : Class 9
how can it be both?10/3 and -10/3 are like north and south polesthey are completely differentit can only be eitherboth is wrong

Ans 7:

Class : Class 8
This is because -10/3 whole square is 100/9 and 10/3 whole square is also 100/9

Ans 8:

Class : Class 8

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Subject :IMO    Class : Class 2

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