International Maths Olympiad Forum By SOF Olympiad Trainer - Page 588

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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)

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

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

Ans 4:

Class : Class 6

Ans 5:

Class : Class 4
ans is c

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9
The answer should be C

Ans 8:

Class : Class 7
Master answer required

Ans 9:

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

Ans 15:

Class : Class 8
Answer is C

Ans 16:

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

Ans 17:

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..

Ans 21:

Class : Class 8

Ans 22:

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

Ans 27:

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

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8
d

Ans 2:

Class : Class 10
no , its b.

Ans 3:

Class : Class 4
d

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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

Ans 3:

Class : Class 5
'c' = correct

Ans 4:

Class : Class 6

Ans 5:

Class : Class 8
All figures have perpendicular lines

Ans 6:

Class : Class 4

Ans 7:

Class : Class 8

Ans 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.

Ans 10:

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

Ans 12:

Class : Class 4
yes

Ans 13:

Class : Class 5
How

Ans 14:

Class : Class 3
C

Ans 15:

Class : Class 8

Ans 16:

Class : Class 6
It is c

Ans 17:

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.

Ans 21:

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

Ans 26:

Class : Class 4

Ans 27:

Class : Class 8

Ans 28:

Class : Class 8

Ans 29:

Class : Class 6
it is d

Ans 30:

Class : Class 8
But what about the curved arrow

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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 .

Ans 6:

Class : Class 9

Ans 7:

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

Ans 10:

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

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
TENS

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 3

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6

Ans 6:

Class : Class 3
TENS

Ans 7:

Class : Class 5

Ans 8:

Class : Class 2
tens

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Subject :IMO    Class : Class 3

Mrs Sharma wrote a 2-digit number on the blackboard. Three students Lalit, Vinay and Prashant said the following statements about that number.
Lalit : "It is a 2-digit number but not the least".
Vinay : "It is the predecessor of least 3-digit number".
Prashant : "It is having three different digits".
If only two of the three students said the truth, who is definitely lying?

A Lalit
B Vinay
C Prashant
D Both (A) and (B)


Ans 1:

Class : Class 4
Prashant

Ans 2:

Class : Class 4

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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.

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Subject :IMO    Class : Class 8

Ans 1:

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

Ans 2:

Class : Class 8

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