International Maths Olympiad Forum By SOF Olympiad Trainer - Page 581
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radhika gopal from tips, Coimbatore
Subject :IMO    Class : Class 5

Ans 1:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
my answer is 4 but it is marked as 3

Ans 2:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
why they are giving the answer as 4

Ans 3:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
the answer should be D,4 and not C,3 as the letters in CHAIR are C,H,A,I but not R have a line of symmetry.

Ans 4:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7
my answer i 4 but they marked it wrong and showed the correct answer 3 but in the solution they are saying the answer is 4.

Ans 5:

manmeet from bbps pusa road, New Delhi
Class : Class 6

Ans 6:

Pradnya Ambatipudi from Vikas- The concept school, Hyderabad
Class : Class 7
the answer is 4{d}

Ans 7:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8
my answer is 4 but you marked it wrong

Ans 8:

Aditi Saha from Bishops KalyaniNagar, Pune
Class : Class 4
the answer is 4{d}

Ans 9:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
Srijit, you are absolutely right!

Ans 10:

Shaurya Shrivastava from Amanora school, Pune
Class : Class 6
MY ANSWER WAS MARKED BY ME AS 4 BUT THEY GAVE IT THAT I MARKED 3!!!!!!!!!!!

Ans 11:

Hriday Sriram from APL Global School, Chennai
Class : Class 5
Why is the solution answer D but, answer C? Answer 4 is answer D!!!

Ans 12:

Arav Aanand from Father Agnel School, Noida
Class : Class 6

Ans 13:

adwitiya saxena from Ryan Internatinational School, Navi Mumbai
Class : Class 6
I think that it's a printing mistake. IN solution they are writing C,H,A,I have a line of symmetry which are 4 letters, but in the answer they are giving 3

Ans 14:

Joe Bipin from National Public School Agra, Bangalore
Class : Class 10
it is a printing mistake

Ans 15: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 16:

Arav Aanand from Father Agnel School, Noida
Class : Class 6
The answer should be D. 4 as C, H, A, and I have at least a line of symmetry

Ans 17:

DEBOSMITA GARAI from G.D.BIRLA CENTRE FOR EDUCATION, kolkata
Class : Class 6
your answer is wrong

Ans 18:

SRIJIT CHATTOPADHYAY from THE SHISHUKUNJ INTERNATIONAL SCHOOL, Indore
Class : Class 10
Their ( SOF Olympiad Trainer) solution is saying four , still they have marked 3 .

Ans 19:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4
my answer is 4 but you marked it wrong

Ans 20:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 21:

Vikram from AVM, Mumbai
Class : Class 5
my answer is 4 but you marked it wrong

Ans 22:

Kavitharini Joseph from HUS, Chennai
Class : Class 6
my answer is 4 but you marked it wrong

Ans 23:

Abhijato Chatterjee from Bharatiya Vidya Bhavan, Kolkata, kOLKATA
Class : Class 6
in the solution they say 4 and it is 4 but they mark it as wrong

Ans 24:

Tintin from Kolkata, Kolkata
Class : Class 10
the correct ans should be option D

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manish from cms, lucknow
Subject :IMO    Class : Class 8

Ans 1:

trainee from Gandhi city public school, pulgaon
Class : Class 8
the answer is(b) 65

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Aditi from Salt Lake School, Kolkata
Subject :IMO    Class : Class 9

Ans 1:

ARYAN PRASAD from Podar Internation School, Vadodara
Class : Class 9

Ans 2:

ARYAN PRASAD from Podar Internation School, Vadodara
Class : Class 9
option c

Ans 3:

Ankit Kumar from Rkm, Chapra
Class : Class 9

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Akriti ANannd from DPS Gaya, GAYA
Subject :IMO    Class : Class 7

Ans 1:

Harsh Kumar from Maharishi Vidya Mandir, Guwahati
Class : Class 8
I have confusion in statement 1 but 2nd statement are correct. 1st statement in first no of pages in symmetry chapter is 12. total no pages is 320. the ratio is 12:320 =3:81 = 1 :27 2nd statement 2 out of 5 can participate means 40% of the student the 40% of 100 is 40 the percentage of students that participate in the quiz = 40/100*100 40%

Ans 2:

from Podar International School,Dhule, Dhule
Class : Class 8
12:320=3:80 in its simplest form. It is not equal to 3:81. You may simplify it like 12/320 divide both numerator and denominator by 4. You will surely get the answer as 3:80.

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Shivam kushwah from Sanskar valley public school, Alampur bhind mp
Subject :IMO    Class : Class 7

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ishaan samantra from FBS , Bhubaneswar
Subject :IMO    Class : Class 3

Ans 1:

Kashika Goel from DPS Noida, Noida
Class : Class 7

Ans 2:

Aadvik from Gyanshree School, Noida
Class : Class 6

Ans 3:

Arvi from Isbe , Europe
Class : Class 7

Ans 4:

Kashika Goel from DPS Noida, Noida
Class : Class 7

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Aadi Turlapati from Glendale International school, Hyderabad
Subject :IMO    Class : Class 5

Ans 1:

Sarang Shete from Amanora School, Pune
Class : Class 8
According to DMAS it should be D.

Ans 2:

Prajjwal Dey from MLZS Wakad, PUNE
Class : Class 6
Yes It should be D according to bodmas rule

Ans 3:

Haasini Krishna from Global edge, Hyderabad
Class : Class 6
yes, we also got the same answer. SOF should explain what rukle they followed

Ans 4:

Prajjwal Dey from MLZS Wakad, PUNE
Class : Class 6
But i checked with a calculator which gave the answer as a which is 69.48

Ans 5:

Aadi Turlapati from Glendale International school, Hyderabad
Class : Class 8
As per DMAS rules, the Answer is D

Ans 6:

Nila Pillai from Chennai public School, Chennai
Class : Class 6
No according to Bodmas rule the answer given by SOF is CORRECT

Ans 7:

adwitiya saxena from Ryan Internatinational School, Navi Mumbai
Class : Class 6
The answer should be D not A. In the first line they have used BODMAS, but in the second they have not and if we use BODMAS we will get option d.

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Krethick Ravichandran from FIITJEE GLOBAL SCHOOL , India
Subject :IMO    Class : Class 5

Ans 1:

Paavni Vaish from VIBGYOR HIGH HENNUR, Bangalore
Class : Class 5

Ans 2:

Manish Mulimani from chrysalis high, Bengaluru
Class : Class 8

Ans 3:

SrisaranN from National school, Bangalore
Class : Class 8

Ans 4:

Aarav Hitesh Parikh from Gopal Sharma International School, Mumbai
Class : Class 8

Ans 5:

Tanmay Chaudhary from MIET public school, MEERUT
Class : Class 7
QUESTION IS NOT WRONG IN THIS WE HAVE TO SEE THE OPTION AND THEN DO IT . LIKE WE CAN ASSUME THAT TOTAL AMOUNT WAS OPTION B THEN DO THE CALLCULATION BUT FOR B WE DO NOT GET THE AMOUNT LEFT 1330

Ans 6:

Adhav Subhashini Arun Kumar from Legacy School Bangalore, Bangalore
Class : Class 7

Ans 7:

madhav from null, null
Class : Class 5
wasted 20 mins for this only

Ans 8:

SUMANTA RAHA from BIRBHUM ZILLA SCHOOL, SURI
Class : Class 2

Ans 9:

Saksham Chanani from Sri Sri Academy, Kolkata
Class : Class 9
did you all get this answer

Ans 10:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8

Ans 11:

Saket S from CPS Global School, Chennai
Class : Class 5

Ans 12:

SUMANTA RAHA from BIRBHUM ZILLA SCHOOL, SURI
Class : Class 2

Ans 13:

Deep Ajay Ovhal from Podar International School, Latur, Latur
Class : Class 7

Ans 14:

Inamul from Springs, Nilambur
Class : Class 9
approach to this problem is not given correctly in solution. thought the answer given is correct.

Ans 15:

Apoorv Raut from Podar International School Jalna, Jalna
Class : Class 7
question is write but it is too tough for 5 th std that to just for 1 mark

Ans 16:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8

Ans 17:

Vaishnavi Sharma from Holy Angels ISC school , THIRUVANANTHAPURAM
Class : Class 8

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Krethick Ravichandran from FIITJEE GLOBAL SCHOOL , India
Subject :IMO    Class : Class 5

Ans 1:

MUDIT KUMAR GARG from THE CAMBRAGE SCHOOL, DHURI
Class : Class 5
D Is the final answer

Ans 2:

Samarth from bangalore, bangalore
Class : Class 5

Ans 3:

MUDIT KUMAR GARG from THE CAMBRAGE SCHOOL, DHURI
Class : Class 5
D Is the final answer

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Krethick Ravichandran from FIITJEE GLOBAL SCHOOL , India
Subject :IMO    Class : Class 5

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