International Maths Olympiad Forum By SOF Olympiad Trainer - Page 584
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lakshmi priya from Emerald Valley Public School, Salem
Subject :IMO    Class : Class 10

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

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lakshmi priya from Emerald Valley Public School, Salem
Subject :IMO    Class : Class 10

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Pallab Layak from Vidyashilp Academy, Bangalore
Subject :IMO    Class : Class 8

Ans 1:

Darsh Goel from Phoneix Greens, Hyderabad
Class : Class 9
Wrong Question guys both a and d look incorrect as rectangle is not a trapezium and even square's diagonals are equal.

Ans 2:

Arnav from NPS, Bangalore
Class : Class 8
all answers are correct, this question is wrong

Ans 3:

Tejas Agarwal from Prudence School , New Delhi
Class : Class 9
The answer is D as Rectangle is also a special type of trapezium so it is correct . Also, the option B is correct. Option C is correct too as interior angle sum of triangle is 180 and the exterior angle sum is double i.e. 360The correct answer would be option D as isosceles trapezium also has its diagonals equal therefore it is the incorrect statement required. Therefore, the answer should be D instead of C

Ans 4:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8

Ans 5:

Anirudh from 989820Delhi Pubic school Rohini , Delhi
Class : Class 8
D is answer

Ans 6:

Arkajyoti Das from techno, Cooch Behar
Class : Class 8
wrong answer.it should be d

Ans 7:

D VISHNU from NARAYANA SCHOOL, CHENNAI
Class : Class 7

Ans 8:

Vipin Garg from BAL BHARATI PUBLIC SCHOOL, New Delhi
Class : Class 7
Answer should be D diagonals are equal in square as well So if diagonals are equal it need not be a rectangle

Ans 9:

aditya arora from Heritage Experiential Learning School, gurugram
Class : Class 8
i agree, A is correct, there is no incorrect answer, as a rectangle is a special trapezium

Ans 10:

Aayushman mohapatra from Sental The Global School, Hyderabad
Class : Class 8

Ans 11:

Pallab Layak from Vidyashilp Academy, Bangalore
Class : Class 9
Trapezium is a quadrilateral with two parallel sides. Parallelogram is a special case of trapezium and rectangle is a special case of parallelogram, hence rectangle is a special case of trapezium

Ans 12:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9

Ans 13:

VYOM VIVEK PATEL from Doon Public School Bhuj, Bhuj Kuchchh
Class : Class 8

Ans 14:

rajib jana from DPS MEGA City, Kolkata
Class : Class 8
A rectangle is a type of trapezium only and anyway the diagonals of a square is also equal

Ans 15:

Angshu from Dehli Public School Bangalore East, Bangalore
Class : Class 8
A is correct. By definition, a trapezium has ONLY ONE pair of parallel sides. A rectangle has 2 pairs of parallel sides, hence it is not a trapezium.

Ans 16:

Tanmay singh from DPS Visakhapatnam , Visakhapatnam
Class : Class 8
rectangle is also a trapezium because atleast one pair of sides parallel……..

Ans 17:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 10
Wrong question guys !

Ans 18:

Antara Mazumdar from Navy Children School, Mumbai
Class : Class 8

Ans 19:

N Khanna from MJKPS, New Delhi
Class : Class 10
Both a and d options are correct, its marker wrong. Rectangle is a special trapezium and square also has all sides equal

Ans 20:

Janani swethaa from CS ACADEMY, Erode
Class : Class 10
The answer is D

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basant raj from delhi public school, gaya
Subject :IMO    Class : Class 4

Ans 1:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
The correct answer is c

Ans 2:

AARNA GOEL from UPTON SCHOOL, ENGLAND
Class : Class 5
Give me the sherbet candy I will give you a kindness badge I am in England

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
I agree that the answer is C …………….. Now give me the "Sherbet Candy" Ashmi. Ha Ha Ha !!!

Ans 4:

Shubh Gupta from DPS Gurugram Sec 84, Gurugram
Class : Class 4

Ans 5:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Ans 6:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
How the answer is C

Ans 7:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
I Did not at all understand!!!!!!!

Ans 8:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 6

Ans 9:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Ans 10:

Zephaniah and Josiah from Gems Modern Academy, Dubai
Class : Class 1

Ans 11:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
If you all agree the answer is C You all will get from me a tasty little sherbet candy

Ans 12:

ANSHUMAN JAIN from emrald heights international school, Indore
Class : Class 4
Anshuman malhotra from mumbai , i got it correct

Ans 13:

AARNA GOEL from UPTON SCHOOL, ENGLAND
Class : Class 5
yes i agree the anwer is c

Ans 14:

sudhish from St Pauls English School, Bangalore
Class : Class 2
Yap, the right answer is C

Ans 15: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 16:

MYRA RAINA from SANDKRITI SCHOOL BHUKUM PUNE, PUNE
Class : Class 4
Can you please explain how the answer is "c" .

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Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI
Subject :IMO    Class : Class 3

Ans 1:

Yalini from Agaram public school, Tirupur
Class : Class 4
A

Ans 2:

akshitha from Euroschool, Bengaluru
Class : Class 3
A

Ans 3:

MAYANK from Jain Public School, REWARI
Class : Class 9
a

Ans 4:

Aditi Shiv Shankar Jaiswal from Delhi Public School Jeddah, Jeddah
Class : Class 4
A

Ans 5:

Harseerat from Saupin's school, Chandigarh
Class : Class 3
A

Ans 6:

Rupcha ghosh from st, joseph's english medium school, katwa
Class : Class 6
A

Ans 7:

Aditi Shiv Shankar Jaiswal from Delhi Public School Jeddah, Jeddah
Class : Class 4
A

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Yashashree Somdatta Kulkarni from Delhi Public School, Nashik
Subject :IMO    Class : Class 4

Ans 1:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
because its asking the unshaded figure not the shaded figure

Ans 2:

Arnav kaul from Chirec, Hyderabad
Class : Class 2
because it is unshaded not shaded.

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Dhruv Garg from Dewan Public School, Meerut
Subject :IMO    Class : Class 5

Ans 1:

shubhavi Dhondge from NPS, Banagalore
Class : Class 8
b is the correct answer

Ans 2:

Anvi Sindhwani from BVM, NAGPUR
Class : Class 5
B is the correct answer and not D

Ans 3:

Aniket Amit Kulkarni from Raghavdas Vidayala, Pune
Class : Class 5
why are you writing same sentence

Ans 4:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
Guys, it's d.. due to some explanations, I clicked b.... also, the people saying b are wrong as d showed up in my test results

Ans 5:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 7
Bbbbbbbbbbb

Ans 6:

Vikruti Jain from Vibgyor Rise, Mumbai
Class : Class 4

Ans 7:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 7

Ans 8:

Dhriiti from BCM, Ludhiana
Class : Class 8
The answer is D only

Ans 9:

adithya r from PSBB MS, Chenai
Class : Class 5
I THINK B IS THE ANSWER

Ans 10:

Aniket Amit Kulkarni from Raghavdas Vidayala, Pune
Class : Class 5

Ans 11:

shubhavi Dhondge from NPS, Banagalore
Class : Class 8
Even I think the answer is B

Ans 12:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 7
Plus there is no solution

Ans 13:

Aniket Amit Kulkarni from Raghavdas Vidayala, Pune
Class : Class 5
B is only the answer because it is symetry

Ans 14:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 5
b is not the answer but d because in a symetry , both the sides should be opposite .

Ans 15:

Aniket Amit Kulkarni from Raghavdas Vidayala, Pune
Class : Class 5
why are you silent you dont`t have head see properly then answer me

Ans 16:

Ahoraatra Mondal from GOKHALE MEMORIAL GIRLS' SCHOOL, HOWRAH
Class : Class 4
It's b guys it's b not d

Ans 17:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
master admin answer

Ans 18:

Anukarsh Dubey from Parvati Radhakrishna Formara school, Mathura
Class : Class 6
I thought A was the answer but the answer is d

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Dhruv Garg from Dewan Public School, Meerut
Subject :IMO    Class : Class 5

Ans 1:

Aniket Amit Kulkarni from Raghavdas Vidayala, Pune
Class : Class 5
But B answer is also the correct answer

Ans 2:

Adway Bachchan from Indian School Sohar, Sohar
Class : Class 8
answer is not b because the lines on top of the letter are horizontal

Ans 3:

Pulin Sharma from Marble Arch School, Mumbai
Class : Class 6
According to me the correct answer to this question is D] Because it has a line of symmetry from top to bottom

Ans 4:

Shimoni Agarwal from delhi Public School, Moradabad
Class : Class 5

Ans 5:

saumit from Narayana E-techno, mumbai
Class : Class 5

Ans 6:

Rushil Arora from DPS, New Delhi
Class : Class 5
the answer to this question can also be b because option b also has a line of symmetry

Ans 7:

Shimoni Agarwal from delhi Public School, Moradabad
Class : Class 5
But B has slanting line of symmetry.The line of symmetry doesn't means only to be strategy

Ans 8:

DIVISHA.AGARWAL from d.p.s. noida, Noida
Class : Class 5
D is the answer because it is straight but option B is not correct because over here it is slanting , and there is no such symmetry

Ans 9:

saumit from Narayana E-techno, mumbai
Class : Class 5
I say B is also a line of symmetry but the correct answer is D

Ans 10:

Shimoni Agarwal from delhi Public School, Moradabad
Class : Class 5
sorry

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Hrushikesh from , Nagpur
Subject :IMO    Class : Class 7

Ans 1:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
i agree

Ans 2:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option a is correct as angle pqs is epual to angle qsa +angle ast (alternate interior angle)=70 98=28+x x=98-28 x=70 ast+tsb=180(straight angle) 70+y=180 y=180-70 y=110

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harnoor from cambridge international school, nawanshahr
Subject :IMO    Class : Class 8

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