International Maths Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
answer can be 3 also

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 8

Post Your Answer

Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
ANSWER MUST BE 20 SINCE FORMULA IS N-3 SO FOR ONE VERTICE IT IS 10 SO TWO WILL BE 20

Ans 4:

Class : Class 8
The answer should be 20

Ans 5:

Class : Class 8
it should be 20 because the formula for number of diagonals from a vertices is n-3, so for one vertice is 10 diagonals so two is gonna be 20

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
If the answer is 22 then the polygon should be 14 sided.

Ans 8:

Class : Class 8
answer should be 20

Ans 9:

Class : Class 9
THE ANSWER SHOULD BE 20.

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
It should be 1 not 2 because half half = 1

Ans 2:

Class : Class 6
D)

Ans 3:

Class : Class 6
IT SHOULD BE 1 NOT 2. 1/2 1/2 = 1

Post Your Answer

Subject :IMO    Class : Class 8

Fill in the blanks.
(i) The perimeter of circle and its diameter vary __P__ with each other.
(ii) If two quantities p and q vary inversely with each other then __Q__ of their corresponding values remain constant.
(iii) When x and y are in indirect proportion and if y doubles then x becomes __R__

P Q R
A Inversely Ratio Double
B Directly Product Half
C Inversely Ratio Double
D Directly Product Half


A and c , b and d are same.

Ans 1:

Class : Class 8
B and D are identical

Ans 2:

Class : Class 9
answer is both B and D

Ans 3:

Class : Class 8
How can they give they two same options and mark one wrong

Post Your Answer

Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8
pl give solution, very confusing question

Ans 2:

Class : Class 6

Ans 3:

Class : Class 7
Sorry diagonal of a rectangle is l^2 b^2

Ans 4:

Class : Class 7
First of all,diagonal of a rectanhle=square root of l^2 b^2,so 9×square root of 5 is square root of 81 × 5 that is 405 so here 2x is l and x is b.if i m taking l is 18 and b is 9 and squaring them we get 405 so perimeter of the rectangle is 2(18 9) that is 54.

Ans 5:

Class : Class 7
please provide explanation soon

Ans 6:

Class : Class 9
give explanation please.

Ans 7:

Class : Class 7
it is very simple and can be solved with Pythagoras.Length=2y Breadth=yroot of [(2y)square ysquare]=9 x root of 5root of [4ysquare ysquare]=9 x root of 5root of 5ysquare=9 x root of 5 = y x root of 5thus y = 9 and 2y = 18p=54

Ans 8:

Class : Class 9
explaination of answer not provide....how to check the solution??

Ans 9:

Class : Class 7
w=xl=2xd=9root52(l b)=?2(x 2x)=?using pythogras theorem,xsquare 4 x square=(9root5)squared5xsquare=405x square=81x=9hence substitute values with x,perimeter=54

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
C)

Ans 2:

Class : Class 6
C)

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer