International Maths Olympiad Forum By SOF Olympiad Trainer - Page 408
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Sradha Ratheesh from MGM central Public School, Trivandrum
Subject :IMO    Class : Class 6

Ans 1:

ABHIRAM from chirec, HYDERABAD
Class : Class 10
b-20 as volume - number of cubes there now the volume is 4*3*3=36 there are 16cubes so 36-16=20

Ans 2:

Vidula Malkar from DPYA High school, Mumbai
Class : Class 7

Ans 3:

Veda Dua from Delhi Public School, R. K. Puram, New Delhi
Class : Class 10

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Parth somani from Daffodils world school, Sikar Rajasthan
Subject :IMO    Class : Class 6

Ans 1:

anuvrat lal from DPS navi Mumbai , Mumbai
Class : Class 7

Ans 2:

Advik Dixit from Ryan International School Sanpada Navi Mumbai , NAVI MUMBAI
Class : Class 9

Ans 3:

Aayushi Roy from DPS, Greater Noida
Class : Class 6

Ans 4:

varun Gupta from arya vidya mandir, Mumbai
Class : Class 8

Ans 5:

harmit from goldcrest high, Mumbai
Class : Class 6

Ans 6:

harmit from goldcrest high, Mumbai
Class : Class 6

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Nilay Parekh from Fatima convent public school , Bhavnagar
Subject :IMO    Class : Class 10

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Nilay Parekh from Fatima convent public school , Bhavnagar
Subject :IMO    Class : Class 10

Ans 1:

from ,
Class : Class 8
C

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Nilay Parekh from Fatima convent public school , Bhavnagar
Subject :IMO    Class : Class 10

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Avni Jhalani from MGPS, Jaipur
Subject :IMO    Class : Class 7

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Garv Agarwal from Somerville School Noida, Noida
Subject :IMO    Class : Class 6

Ans 1:

MUKIL from SRDF VIVEKANANDA VIDYALAYA, CHENNAI
Class : Class 6
12

Ans 2:

Saisha Bagrecha from St.Aronlds Central School, Pune
Class : Class 7
12 is correct as there are 2 right angles also

Ans 3:

prabhmehar from Delhi public school , navi mumbai
Class : Class 6
I think so it is 10

Ans 4:

Meghna from head start, Bangalore
Class : Class 8
it's 12 as angle BAC and angle ACD are right angles, and nee to be counted.

Ans 5:

Swastik from st marys school, new delhi
Class : Class 6
10

Ans 6:

ADRIJA SAHA from DPS RANIPUR, Haridwar
Class : Class 6
The answer should be 10 which is option A

Ans 7:

abhinav v from LMOIS, Chennai
Class : Class 9

Ans 8:

Rajendra Arora from Seth Anandram Jaipuria, Ghaziabad
Class : Class 6
The ans in 12

Ans 9:

SHUBHAM PRASAD from NAVRACHANA SAMA, BARODA
Class : Class 6

Ans 10:

Ishir Jha from Gyan Ganga Global Academy, Rosera
Class : Class 8

Ans 11:

Sanay Pathak from Hooghly, Hooghly
Class : Class 5
The option is A. Calculation mistake by SOF. My marks should be 54, not 53

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Garv Agarwal from Somerville School Noida, Noida
Subject :IMO    Class : Class 6

Ans 1:

Dishamrutha from indian school of excellence, bangalore
Class : Class 6
A IS CORRECT AS RATIO HAS BOTH TERMS IN SAME UNIT. SO CM SHOULD BE CONVERTED TO KM.

Ans 2:

Shaurya Gupta from Father Agnel School, Noida
Class : Class 7
Answer is d as it is distance in cm on map and km in real

Ans 3:

Parth somani from Daffodils world school, Sikar Rajasthan
Class : Class 7
THE CORRECT ANSWER SHOULD BE D

Ans 4:

ADRIJA SAHA from DPS RANIPUR, Haridwar
Class : Class 6
The correct answer is D as24 cm on map= 360 kmSo ratio of distance between map and actual distance on ground= 24:360 = 1:15

Ans 5:

Ishita Pandey from The Samhita academy, Bengaluru
Class : Class 7
The correct ans is A as you have to convert km to cm

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Garv Agarwal from Somerville School Noida, Noida
Subject :IMO    Class : Class 6

Ans 1:

Daksh Chanani from Sri Sri academy, Kolkata
Class : Class 7

Ans 2:

Garv Agarwal from Somerville School Noida, Noida
Class : Class 3

Ans 3:

Sharmi Chowdhury from G.D Birla Centre For Education , Kolkata
Class : Class 7
Solution and explanations please....

Ans 4:

Ananya Tiwari from Sapphire International School, Ghaziabad
Class : Class 7
Actually, it was a pretty simple problem.1. Divide 1901 by 6 (which is equal to 316)2. Since there is a remainder, 317(316 1) times 6 gives you the first number divisible by 6 within the range.3. Next, divide 2000 by 6 (which is 333), similarly, 333 times 6 gives you the last number divisible by 6 within this range.The answer is 17 not 16 because there are 17 numbers which are divisible by 6: -317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333Hope this is helpful.Thanks

Ans 5:

Mayank Mili from Delhi Public School, Golaghat
Class : Class 9

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Garv Agarwal from Somerville School Noida, Noida
Subject :IMO    Class : Class 6

Ans 1:

ABHIRAM from chirec, HYDERABAD
Class : Class 10
i think the answer is 10u as- breadth=u so length=4u perimeter=2(l+b)=2(4u+u)==2*5u=10u

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