# User Forum Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 6

Subject :IMO    Class : Class 8

Class : Class 8

## Ans 2:

Class : Class 9

Subject :IMO    Class : Class 3

Class : Class 1

## Ans 2:

Class : Class 6
As per my calculation, I am getting 45 straight lines of different sizes, even including the small lines. I don't know how C answer is correct. Can any one please explain?

Class : Class 5

Class : Class 2

## Ans 5:

Class : Class 6
how the answer is c because im geeting 16 lines

## Ans 6:

Class : Class 3
This question is wrong as I am getting 31 lines

Subject :IMO    Class : Class 6

Subject :IMO    Class : Class 7

Subject :IMO    Class : Class 8

## Ans 1:

Class : Class 9
c.p of each apple = 34/8 = 4.25 s.p of each apple = 57/12 = 4.75 profit per apple = 4.75-4.25 = 0.5 net profit = no of apple sold * profit on each apple 45 = no of apple sold *0.5 45/0.5 = 45*2 = 90 = no of apple sold thus the answer is (A) 90 apples

Subject :IMO    Class : Class 6

Subject :IMO    Class : Class 8

## Ans 1:

Class : Class 9
Let the measure of the breadth =10 Let the measure of the length = 10 original area=10 x 10 =100 new length=9.5 new breadth=10.5 new area = (100-5)(100+5)/100 new area=99.75 percent change=100-99.75 =(0,25/100) x 100=0.25% decrease

Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 1

Subject :IMO    Class : Class 6

Class : Class 9

Class : Class 5

## Ans 3:

Class : Class 7
Yes, but the options are wrong

## Ans 4:

Class : Class 8
yes, the ans is 10 2/5 only....

## Ans 5:

Class : Class 6
True. Options are wrong...... :-(

## Ans 6:

Class : Class 8
Yes the answer is 10.4 or10 2/5

Class : Class 6

Class : Class 8

## Ans 9:

Class : Class 6
how did you get this answer

## Ans 10:

Class : Class 8
As the answer will be like this(-3/5 -(-2 3/5)) * 5 1/5= 2*5 1/5/ = 10 2/5

## Ans 11:

Class : Class 5
I agree to the solution given by SOF Olympiad Trainer but the options are wrong.

## Ans 12:

Class : Class 7
yes what is the solution to this question?

Class : Class 6
wrong options