International Maths Olympiad Forum By SOF Olympiad Trainer - Page 670
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Jyoti Praful Shinde from New horizon public school , Mumbai
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

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Class :

Please mention your query


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from ,
Subject :IMO    Class : Class 8

Ans 1:

sagar kumar from D A V public school , NOIDA
Class : Class 10
0 is both a number and the numerical digit used to represent that number in numerals. The number 0 fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems.

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from ,
Subject :IMO    Class : Class 8

Ans 1:

sagar kumar from D A V public school , NOIDA
Class : Class 10
0 is both a number and the numerical digit used to represent that number in numerals. The number 0 fulfills a central role in mathematics as the additive identity of the integers, real numbers, and many other algebraic structures. As a digit, 0 is used as a placeholder in place value systems.

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Yash Bindal from Global Indian International School, Singapore
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

from ,
Class :

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Adithya Ravi from National Centre For Excellence , Bengaluru
Class : Class 9

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Urvee Sarang Gokhale from Sri Sri Ravi Shankar Vidya Mandir, Pune
Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

from ,
Class :

1000 in roman numerals = M


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Shubhan from Euro School, Mumbai
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

from ,
Class :

The correct answer is C

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


Ans 2:

KALLOL PAL from TIGPS Mankundu , CHANDANNAGAR
Class : Class 9
20

Ans 3:

Prerna Singh from Loyola School, Jamshedpur
Class : Class 5
Ans. C (20)

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Shweta Garg from Vibgyor high, Vadodara
Subject :IMO    Class : Class 5

Ans 1:

from ,
Class :
Answer is B) 17766

Ans 2:

from ,
Class :
B

Ans 3:

Aarya Teja from Bharatiya Vidya Bhavans Public School, Hyderabad
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: (Master Answer)

from ,
Class :

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 5:

Aarya Teja from Bharatiya Vidya Bhavans Public School, Hyderabad
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:

Ashwak from Cambridge, Jalandhar
Class : Class 9
B

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Priya Lalwani from Sophia Sr Sec School, Bikaner
Subject :IMO    Class : Class 9

Ans 1:

Sujal Shishodia from HAPPY SENIOR SECONDARY SCHOOL, Jind
Class : Class 10
D

Ans 2: (Master Answer)

from ,
Class :

The correct answer is D.


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from ,
Subject :IMO    Class : Class 4

Ans 1:

Mithi from G D BIRLA , Kolkata
Class : Class 2

Ans 2:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5

Ans 3:

Arihaan Adhikari from Modern Delhi International School, Sector 87, Faridabad
Class : Class 9

Ans 4:

from ,
Class :
The correct answer is D

Ans 5:

Sayan Duary from Vidyasagar Shishu Niketan, Paschim Medinipur
Class : Class 10

Ans 6: (Master Answer)

from ,
Class :

The correct answer is D

 


Ans 7:

Arihaan Adhikari from Modern Delhi International School, Sector 87, Faridabad
Class : Class 9

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Shweta Garg from Vibgyor high, Vadodara
Subject :IMO    Class : Class 5

Ans 1:

Prachi from Holy Child Public school, Faridabad
Class : Class 10
yes 13(b) is the correct answer. You have counted triangle 5 and 6 twice. What a hell it is.

Ans 2:

JOIS GEORGE from Dimension, Singapore
Class : Class 5
Look Closely!!! its 15, include other triangles!!!!!

Ans 3:

Sharvi Deshmukh from BRPS, Pune
Class : Class 1
(B)13 is the correct answer

Ans 4:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
B is correct

Ans 5:

Irresh Vijay from NPSI Singapore, Singapore
Class : Class 8

Ans 6:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8
But I agree that the answer is B

Ans 7:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8
I still don’t understand how the answer is C. I got the answer as 14

Ans 8:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Watch out the solution . Then ya all will understand everything!!!!!!!Sab samajh jaaoge !!!!!!!!!

Ans 9:

Yash from Dps, Noida
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 10:

Joe Bipin from National Public School Agra, Bangalore
Class : Class 10
answer is 15 c

Ans 11:

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

Ans 12:

Risha Jakhotiya from Indo Scott Global School, Pune
Class : Class 4
Hey! 13 and 14 are not triangles!!!

Ans 13:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8
teree to pit jaega

Ans 14:

PRAPTI BHATTACHARYA from St. Ann's School, ROORKEE
Class : Class 5
Correct answer is d-17

Ans 15:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6

Ans 16:

Sarang Shete from Amanora School, Pune
Class : Class 8

Ans 17:

from Delhi Public School Noida, GHAZIABAD
Class : Class 6

Ans 18:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

Ans 19:

adhiraj from Gundecha Education Academy, Mumbai
Class : Class 5
The answer is A - 11

Ans 20:

Nila Pillai from Chennai public School, Chennai
Class : Class 6
Answer is 15 not 13 Look closely!!!!

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