International Maths Olympiad Forum By SOF Olympiad Trainer - Page 523

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Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

1000 in roman numerals = M


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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
20

Ans 2: (Master Answer)

Class : Class 1

The correct answer is C

Number of detective books he read 
= 4 × 5 = 20.


Ans 3:

Class : Class 5
Ans. C (20)

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
B

Ans 2:

Class : Class 4
Answer is B) 17766

Ans 3:

Class : Class 6
(B) 17766 When 17766 is rounded to the nearest tens, it is 17770 When 17766 is rounded to the nearest hundreds, it is 178000 When 17766 is rounded to the nearest thousands, it is 18000 Therefore, 17766 agrees with all the rules and is the right answer.

Ans 4:

Class : Class 8
B

Ans 5: (Master Answer)

Class : Class 1

The correct answer is B - 17766 

Rounding off rounds off 17766 to the nearest thousand, you will get 18000.

Rounding off 17766  to the nearest hundred, you will get 17800.

And rounding off to the nearest ten, you will get 17770.


Ans 6:

Class : Class 6
(B) 17766 When 17766 is rounded to the nearest tens, it is 17770 When 17766 is rounded to the nearest hundreds, it is 178000 When 17766 is rounded to the nearest thousands, it is 18000 Therefore, 17766 agrees with all the rules and is the right answer.

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Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

The correct answer is D.


Ans 2:

Class : Class 10
D

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 3
The correct answer is D

Ans 2:

Class : Class 2

Ans 3:

Class : Class 8

Ans 4:

Class : Class 5

Ans 5: (Master Answer)

Class : Class 1

The correct answer is D

 


Ans 6:

Class : Class 7

Ans 7:

Class : Class 7

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
Look Closely!!! its 15, include other triangles!!!!!

Ans 2:

Class : Class 5
Correct answer is d-17

Ans 3:

Class : Class 8
Hey! 13 and 14 are not triangles!!!

Ans 4:

Class : Class 8
But I agree that the answer is B

Ans 5:

Class : Class 7
hey sorry that my first answer was wrong .....the correct answer is [c] 15 as they are counting the 13 , 14 as each half of the whole triangle

Ans 6:

Class : Class 5
The answer is A - 11

Ans 7:

Class : Class 9

Ans 8:

Class : Class 1
(B)13 is the correct answer

Ans 9:

Class : Class 8
I still don’t understand how the answer is C. I got the answer as 14

Ans 10:

Class : Class 8

Ans 11:

Class : Class 10
answer is 15 c

Ans 12:

Class : Class 6

Ans 13:

Class : Class 5
B is correct

Ans 14:

Class : Class 8

Ans 15:

Class : Class 9
yes 13(b) is the correct answer. You have counted triangle 5 and 6 twice. What a hell it is.

Ans 16:

Class : Class 7
Watch out the solution . Then ya all will understand everything!!!!!!!Sab samajh jaaoge !!!!!!!!!

Ans 17:

Class : Class 6
Answer is 15 not 13 Look closely!!!!

Ans 18:

Class : Class 8
teree to pit jaega

Ans 19:

Class : Class 7
they are counting 5 , 6 two times so that means that the answer is b 13

Ans 20:

Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 10

Ans 2:

Class : Class 4
Like this :- First we will remove 6 from the left side of the equation and add 6 on the right side this would bring this :- x +25+5=26 Then we will substract 25 from both sides ,this would bring this :- x + 5 = 1 Then we will substract 5 from both sides this will give us :- x = -4 ,so x = -4

Ans 3:

Class : Class 10
x =20+6-5-25= - 4. so, x = - 4

Ans 4:

Class : Class 10
-4

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Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

Kindly upload the image of the figure


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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
The correct answer is option C.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 10
C

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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

The correct answer is C.

 


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