International Maths Olympiad Forum By SOF Olympiad Trainer - Page 582

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
B

Ans 2: (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 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 9
B

Ans 5:

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 6:

Class : Class 4
Answer is B) 17766

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 10
D

Ans 2: (Master Answer)

Class : Class 1

The correct answer is D.


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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 3
The correct answer is D

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8

Ans 4:

Class : Class 5

Ans 5:

Class : Class 8

Ans 6: (Master Answer)

Class : Class 1

The correct answer is D

 


Ans 7:

Class : Class 2

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 10
answer is 15 c

Ans 2:

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

Ans 3:

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

Ans 4:

Class : Class 8
teree to pit jaega

Ans 5:

Class : Class 10
yes 13(b) is the correct answer. You have counted triangle 5 and 6 twice. What a hell it is.

Ans 6:

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

Ans 7:

Class : Class 3
Hey! 13 and 14 are not triangles!!!

Ans 8:

Class : Class 9

Ans 9:

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

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

Class : Class 5
B is correct

Ans 14:

Class : Class 6

Ans 15:

Class : Class 8

Ans 16:

Class : Class 5
Correct answer is d-17

Ans 17:

Class : Class 5
The answer is A - 11

Ans 18:

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 19:

Class : Class 8

Ans 20:

Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

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

Ans 2:

Class : Class 10
-4

Ans 3:

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 4:

Class : Class 10

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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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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
A,18 is correct answer

Ans 2:

Class : Class 6

Ans 3: (Master Answer)

Class : Class 1

The correct answer is A - 18


Ans 4:

Class : Class 7
a- 18

Ans 5:

Class : Class 7

Ans 6:

Class : Class 5
because of 0 at first position, 6 possibilities are reduced from 24. so it is 18

Ans 7:

Class : Class 6
Option a answer 18 is correct the rest are false options because os zero. Zero cannot come in thousands that s why it cannot be 24.

Ans 8:

Class : Class 5
24

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