International Maths Olympiad Forum By SOF Olympiad Trainer - Page 317
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Nirav Vijay from NPS Chennai, Chennai
Subject :IMO    Class : Class 7

Ans 1:

Kumar Krishiv from Apeejay School, Noida
Class : Class 8
yes and in the figure too it seems like sides are not equal

Ans 2:

Adhrit from CHSV, Chennai
Class : Class 8
How do we know if the hexagon is regular or not? It never mentions anything about that you really should make the questions less ambiguous

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B)

Order of rotational symmetry = 6 


Ans 4:

Vinayak Iyer from Podar International School Powai, Mumbai
Class : Class 9

Ans 5:

Joshua Sen from Montfort Senior Secondary School, Roorkee
Class : Class 9
but da hexagon is wonky

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Sarah Nawalkar from Rajhans Vidhyalaya, Mumbai
Subject :IMO    Class : Class 4

Ans 1:

Nivritti Agarwal from National public school, Bangalore
Class : Class 7
A): Amount of money Bhavya saves in one month = ₹ (2550 - 1875) = ₹ 675∴ Her savings in one year= ₹ (12 × 675) = ₹ 8100Her savings in 3 years = 3 × 8100= ₹ 24300

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Amount of money Bhavya saves in one month = ₹ (2550 - 1875) = ₹ 675
∴ Her savings in one year
= ₹ (12 × 675) = ₹ 8100
Her savings in 3 years = 3 × 8100
= ₹ 24300


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Sanchay Agarwal from Delhi Public School, Roorkee
Subject :IMO    Class : Class 8

Ans 1:

mukul from lancer, delhi
Class : Class 1
son

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Nikhil Bewal from APS KIRKEE, PUNE
Subject :IMO    Class : Class 6

Arrange the given steps in CORRECT order of constructing a perpendicular using ruler and compases.
Steps of construction:
1. With A and B as centres and a radius greater than AP construct two arcs, which cut each other at Q.
2. Join PQ. Then is perpendicular to l. We write
3. With P as centre and a convenient radius, construct an arc intersecting the line l at two points A and B.
4. Given a point P on a line l.

A 4-3-1-2
B 3-4-2-1
C 4-1-3-2
D 1-2-3-4


Ans 1:

Aditya from CHIREC, Hyderabad
Class : Class 6
how did you do thisplease explain this to me

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is option A. 


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Vaishali Nair from Maneckji cooper, Mumbai
Subject :IMO    Class : Class 5

Ans 1:

Navya Vats from Saint Xavier High School, Noida Extension
Class : Class 7
Ans is C means Only K

Ans 2:

Anubhav Dogra from Delhi Public School , Chandigarh
Class : Class 5
A both L And N

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Vaishali Nair from Maneckji cooper, Mumbai
Subject :IMO    Class : Class 5

Ans 1:

Vaishali Nair from Maneckji cooper, Mumbai
Class : Class 8

Ans 2:

SARVESH RAMESH from DPS MIS, QATAR
Class : Class 8

Ans 3:

Anushka Sinha from Sushila Birla Girls School, Kolkata
Class : Class 7

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Shiven Dinkar from DPS Noida, Delhi
Subject :IMO    Class : Class 4

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Amrutha Vemavarapu from Kennedy high the global school, Hyderabad
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): Factors of 18 = 
Factors of 27 = 
So, 6 is not a common factor of 18 and 27.


Ans 2:

Vaishnavi Sahu from St Johns English School and Junior College, Chennai
Class : Class 4
it shows that in which table does 24 and 46 are only in table of 2 the 46 comes after 2 x 12 and even after so many numbers.

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): Factors of 18 = 
Factors of 27 = 
So, 6 is not a common factor of 18 and 27.


Ans 4:

Sarthak Shome from Harvest International, Bangalore
Class : Class 7
man see 3 is a factor of 18 but 27 table does not have 3 as thier factor because 3 multiplied by six is eighteen but 27 does not have a factor so 6 is not a common factor of 27

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Kedar Kulkarni from Walnut School, Pune
Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): Number of marbles in each group = 10
Total number of groups altogether had = 6 + 5 + 9 = 20
Total number of marbles = 20 x 10 + 4 = 204


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Amar Ghatak from Maha Rishi Vidyamandir , Kolkata
Subject :IMO    Class : Class 5

Ans 1:

Tanishq Lotake from Bishop school, Pune
Class : Class 5
36-(117/4)= 27/4 Ans: (B) 6 3/4

Ans 2:

Amar Ghatak from Maha Rishi Vidyamandir , Kolkata
Class : Class 7

Ans 3:

swastik Biswal from St Joseph Convent Higher Secendary school, Sambalpur
Class : Class 5

Ans 4:

Arkajyoti Das from techno, Cooch Behar
Class : Class 8

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