International Maths Olympiad Forum By SOF Olympiad Trainer - Page 731

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
it should be 103 because 3+5=8+15=23+45=68+35=103 means first +5 then +15 then dirctly +30=45 then -10=+35

Ans 2:

Class : Class 3

Ans 3:

Class : Class 6
B

Ans 4:

Class : Class 8
It should be 145.

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Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1
Volume of 1 cube will be 2x2x2=8 units Volume of 12 such cubes is 12x8= 96 units. The correct answer is D.

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Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
The correct answer is B.

Ans 2:

Class : Class 9
The correct answer is B

Ans 3:

Class : Class 4
wrong anwer it should be 8

Ans 4:

Class : Class 5
Correct answer is B

Ans 5:

Class : Class 8
B as the rhombus if turned slightly diagonally will form a square and 5 squares are already there

Ans 6:

Class : Class 2
so so so so so so wrong. They wont even let us put this as an error, when we put this as an error, it will say 'Please enter valid error' when it is a valid error. So bad SOF.

Ans 7:

Class : Class 6
The correct answer is C because one is the outer square, then there are 4 squares inside it and one square is tilted so that will also count.

Ans 8:

Class : Class 4
there are 10 triangles:A,B,C,D,E,F,G,H,BC AND GH

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
yes,b is the right answer. we should just turn the diamond little bit. it will become square. and the other 5 squares.

Ans 11:

Class : Class 7
5 a 5

Ans 12:

Class : Class 4
5

Ans 13:

Class : Class 8
SOF CLARIFY MY DOUBT ASAP

Ans 14:

Class : Class 4
It should be 6 as the first one is the outer square(biggest one) and there are 4 small squares inside it, which makes 5 squares. There is also one square inside the figure which is tilted. It looks like a rhombus but isn't a rhombus because a rhombus doesn't have 4 angles measuring 90 degrees.

Ans 15:

Class : Class 8

Ans 16:

Class : Class 3
THE CORRECT ANS: IS B

Ans 17:

Class : Class 4
it should be 5 as that one is a rhombus

Ans 18:

Class : Class 5
Whole question is wrong. The solution is also wrong. The 'squares' in the question and the solution has to be changed to 'triangles. The only thing which was right is the diagram in the solution.

Ans 19:

Class : Class 8

Ans 20:

Class : Class 2
Unfair

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 9
1/12

Ans 2:

Class : Class 9
1/12

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
I think its D

Ans 2:

Class : Class 4
I think it is D

Ans 3:

Class : Class 3
(D) 14 cm

Ans 4:

Class : Class 8
I guess D

Ans 5:

Class : Class 3

Ans 6:

Class : Class 4
I think it is D

Ans 7:

Class : Class 8
i attempted this question and it was showing green also CHEATER PETER STRAWBERRY EATER (SOF's new name) [short form- CPSE]

Ans 8:

Class : Class 7
It's D

Ans 9:

Class : Class 4
I think it is D

Ans 10:

Class : Class 4
14cm

Ans 11:

Class : Class 4
14cm

Ans 12:

Class : Class 4
I think it is D

Ans 13:

Class : Class 4
I think it is D

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
CORRECT ANS IS B

Ans 2:

Class : Class 10

Ans 3:

Class : Class 8
yeah , b is correct

Ans 4:

Class : Class 8
Correct answer is B

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8
25=5*5

Ans 2:

Class : Class 8
25=5*5 Arkodyuti Maiti

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Subject :IMO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1
She read 30 pages in 30 minutes That means she reads 1 page in 1 minute Hence, 250 pages in 250 minutes.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 8
It is (B)6 .Maybe the paper is showing it wrong.Sometimes the answers are shown wrong.

Ans 2:

Class : Class 5
It is (B)6 .Maybe the paper is showing it wrong.Sometimes the answers are shown wrong.

Ans 3:

Class : Class 7
paper has reported it c but it is b.

Ans 4:

Class : Class 5
B. 6

Ans 5:

Class : Class 7
The answer is B. 6.

Ans 6:

Class : Class 10
vayam from excelsior american school Gurgaon [ B ] 6

Ans 7:

Class : Class 5
B.6

Ans 8:

Class : Class 2

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