International Maths Olympiad Forum By SOF Olympiad Trainer - Page 591
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Shweta Garg from Vibgyor high, Vadodara
Subject :IMO    Class : Class 5

Ans 1:

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 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
B

Ans 3:

Aarav Gupta from Delhi Public School Bangalore East, Bangalore
Class : Class 4
Answer is B) 17766

Ans 4: (Master Answer)

Admin from revisewise, Noida
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 5:

Smitha Pentyala from Ganges valley, Nizampet
Class : Class 5
B

Ans 6:

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.

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

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is D.


Ans 2:

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

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Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI
Subject :IMO    Class : Class 4

Ans 1:

Sayan Duary from Vidyasagar Shishu Niketan, Paschim Medinipur
Class : Class 8

Ans 2:

Arihaan Adhikari from Modern Delhi International School, Sector 87, Faridabad
Class : Class 8

Ans 3:

Aarush Pal from NPS International School, Singapore
Class : Class 3
The correct answer is D

Ans 4:

Arihaan Adhikari from Modern Delhi International School, Sector 87, Faridabad
Class : Class 8

Ans 5:

Mithi from G D BIRLA , Kolkata
Class : Class 2

Ans 6:

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

Ans 7: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is D

 


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

Ans 1:

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

Ans 2:

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 3:

from Delhi Public School Noida, GHAZIABAD
Class : Class 6

Ans 4:

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 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

Sarang Shete from Amanora School, Pune
Class : Class 8

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

Risha Jakhotiya from Sanskriti School , Pune
Class : Class 3
Hey! 13 and 14 are not triangles!!!

Ans 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

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 18:

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

Ans 19:

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

Ans 20:

Irresh Vijay from NPSI Singapore, Singapore
Class : Class 8

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Anil sinha from DPS, Chandigarh
Subject :IMO    Class : Class 6

Ans 1:

Anil sinha from DPS, Chandigarh
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 2:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10

Ans 3:

akshanjaswal from Modern Delhi International School, Faridabad
Class : Class 10
-4

Ans 4:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
x =20+6-5-25= - 4. so, x = - 4

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Mani from eabhyas academy, Hyderabad
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Kindly upload the image of the figure


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Sambhavi nayak from DAV Public school, Cuttack
Subject :IMO    Class : Class 8

Ans 1:

Sambhavi nayak from DAV Public school, Cuttack
Class : Class 8

Ans 2:

sagar kumar from D A V public school , NOIDA
Class : Class 10
C

Ans 3:

Jeet Das from Chinpai high school, Chinpai
Class : Class 8
The correct answer is option C.

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Sambhavi nayak from DAV Public school, Cuttack
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is C.

 


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Ishan Uprit from Bhandari public school, khandwa
Subject :IMO    Class : Class 5

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Vishnu from The pupil saveetha eco school, Chennai
Subject :IMO    Class : Class 3

Ans 1:

PnP from Vibgyor, Bengalore
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 2:

Shubham Singh from Rockwoods High School, Udaipur
Class : Class 5
24

Ans 3:

Shubham Singh from Rockwoods High School, Udaipur
Class : Class 5
because of 0 at first position, 6 possibilities are reduced from 24. so it is 18

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A - 18


Ans 5:

Navni Dasgupta from Rcis, Bangalore
Class : Class 7
a- 18

Ans 6:

Girish Garg from Delhi public school, Bathinda
Class : Class 3
A,18 is correct answer

Ans 7:

saanvi from dpsnoida, Noida
Class : Class 6

Ans 8:

Navni Dasgupta from Rcis, Bangalore
Class : Class 7

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