International Maths Olympiad Forum By SOF Olympiad Trainer - Page 588

# User Forum

Subject :IMO    Class : Class 7

## Ans 1:

Class : Class 9
It's simple addition and subtraction. The total cost of both toys is 52.45+25.32=77.77 You gave him a hundred rupee note. So you gave him 22.23 rupees morethe actual prize which you would recieve as change. So the answer is 22.23 (100-77.77=22.23)

Subject :IMO    Class : Class 5

Class : Class 7

Class : Class 7

## Ans 3:

Class : Class 6
The answer is C] GH Because if we count the blocks in AB then, it's4 If we count the blocks in GH then, it's4 THIS S MY FORMULAE

Class : Class 6

Class : Class 4
ans is c

Class : Class 8

## Ans 7:

Class : Class 9
The answer should be C

Class : Class 7

Class : Class 8
It's cofusing

## Ans 10:

Class : Class 8
B is the correct answer guys, look at the blocks carefully.

## Ans 11:

Class : Class 5
question itself is wrong

## Ans 12:

Class : Class 8
do not worry sof will make the same mistake on paper

## Ans 13:

Class : Class 5
the answer should be C

## Ans 14:

Class : Class 5
OMG, the question itself is wrong

Class : Class 8

## Ans 16:

Class : Class 4
Wrong options SOF.!!!!!! Do you want us to fail

Class : Class 9

## Ans 18:

Class : Class 6
How is the answer B?

## Ans 19:

Class : Class 8
All transversal lines look perpendicular

## Ans 20:

Class : Class 7
This question is itself wrong..

Class : Class 8

Class : Class 5
right

## Ans 23:

Class : Class 5
the answer is d as the line needs to be a proper slant and only i-j is properly slanted

## Ans 24:

Class : Class 6
It is B since GH is not perpendicular by the smallest of angles. EF is perpendicular since if you look at the triangles or 5-sided shapes that are made when lines AB and EF come through a square with an angle not equal to 45 degrees, the sizes are the same. This shows that AB and EF are a pair of perpendicular lines.

## Ans 25:

Class : Class 8
b is totally correct just see the blocks carefully

## Ans 26:

Class : Class 5
ans 7 is right. perpendicular = 90 degree intersecting straight lines

Class : Class 7
it should be C

## Ans 28:

Class : Class 8
Ans is C..... Olympiad Trainer please give master answer or solution.

## Ans 29:

Class : Class 5

Subject :IMO    Class : Class 4

Class : Class 8
d

Class : Class 10
no , its b.

## Ans 3:

Class : Class 4
d

Subject :IMO    Class : Class 5

## Ans 1:

Class : Class 7
Something is wrong here. We have to confirm about it.

## Ans 2:

Class : Class 5
A perpendicular line is 90 degrees, last one doesn't count as 90 degrees, so C

Class : Class 5
'c' = correct

Class : Class 6

## Ans 5:

Class : Class 8
All figures have perpendicular lines

Class : Class 4

Class : Class 8

Class : Class 7

## Ans 9:

Class : Class 5
The answer should be C because in the first figure there are prependicular lines in the bottom in figure 2 there are prependicular lines all four sides near the arrows and in figure 3 there are prependicular lines at the bottom while there are no prependicular lines in figure 4 as they are all acute and obtuse angles so, the answer should be C not D.

Class : Class 6
how

## Ans 11:

Class : Class 7
D is the answer to this question because all the lines are perpendicular and in the 3rd one the bottom lines are perpendicular

Class : Class 4
yes

Class : Class 5
How

Class : Class 3
C

Class : Class 8

Class : Class 6
It is c

Class : Class 5

## Ans 18:

Class : Class 8
i also got it wrong

## Ans 19:

Class : Class 8
All 4 figure has perpendicular line along perimeter

## Ans 20:

Class : Class 9
D cannot be the answer at all.

Class : Class 5

## Ans 22:

Class : Class 7
CONFUSING QUESTION

## Ans 23:

Class : Class 7
It should be C as it is written that we have to find the perpendicular line for each figure, so there are three figures with perpendicular line but if we consider how many perpendicular lines are there in this picture then it should be 4. This answer is absolutely wrong.

## Ans 24:

Class : Class 5
Angles consideration is confusing ....sometime inner and sometime outer angle is consider ....actually SINGLE LINE FIGURE SHOULD BE GIVEN

## Ans 25:

Class : Class 5
it should be a. thats what my supery dupery expert dad said

Class : Class 4

Class : Class 8

Class : Class 8

Class : Class 6
it is d

## Ans 30:

Class : Class 8
But what about the curved arrow

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 8
None of these are correct I have done in calculator

## Ans 2:

Class : Class 8
none of the options is correct

## Ans 3:

Class : Class 7
I tried it a 1000 times with calculator it is giving 0.0000515686

## Ans 4:

Class : Class 9
correct answer is 0.0000515686. So, none of the provided options are correct.

## Ans 5:

Class : Class 8
None of the given options is correct .

Class : Class 9

Class : Class 7

## Ans 8:

Class : Class 5
Answer given is correct:0.0001289 - (0.0000000274 x 1293) 0.0000419032=(0.0001289 - 0.0000354282) 0.0000419032=0.0000934718 0.0000419032=0.00011353750

## Ans 9:

Class : Class 6
the correct answer is going to be 0.0000515686 . I have tried it 10 times. Its given wrong pls correct it SOF

Class : Class 6

## Ans 11:

Class : Class 7
according to bodmas d option is correct

## Ans 12:

Class : Class 9
Ya Parth Kaushish you are right. Got it Vihaan :) Thanks

## Ans 13:

Class : Class 7
none of the options are correct and the solution makes no sense the correct answer is 0.0000515686sof is glitched

## Ans 14:

Class : Class 6
It should be 0.1666731750

## Ans 15:

Class : Class 6
none of the options are correct

## Ans 16:

Class : Class 9
it should be 0.166674175

Subject :IMO    Class : Class 3

Class : Class 3
TENS

Class : Class 4
C

Class : Class 3

Class : Class 4

Class : Class 6

Class : Class 3
TENS

Class : Class 5

## Ans 8:

Class : Class 2
tens

Subject :IMO    Class : Class 3

Class : Class 4
Prashant

## Ans 2:

Class : Class 4

Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 9

## Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Subject :IMO    Class : Class 8

## Ans 1:

Class : Class 8
its given c as the ans in the solutions pls explain how

Class : Class 8