International Maths Olympiad Forum By SOF Olympiad Trainer - Page 485
  1. Home
  2. /  Forum

User Forum

Ask Your Question
akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Subject :IMO    Class : Class 5

Post Your Answer

Nidhi Nageshwar Meerapur from Fr Agnel, Ambarnath
Subject :IMO    Class : Class 8

Ans 1:

yagvalakya from B V B Vidyashram pratap nagar, JAIPUR
Class : Class 9
answer = 196m (a)

Ans 2:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
must be Bthere is some mistake

Post Your Answer

Agastya from Nss Hillspring international school , Mumbai
Subject :IMO    Class : Class 5

Ans 1:

ANOUSHKA GARKHAIL from PRUDENCE, DWARKA
Class : Class 4
500000 and not 500 as its face value of digit 8 and not place value..

Ans 2:

Vihaan Saurabh Chandorkar from National Public School Yeshwanthpur, Bengaluru
Class : Class 5
Answer is 500

Ans 3:

Rohith V from ,
Class : Class 5

Post Your Answer

Namya Jain from Army Public School Mhow, Mhow
Subject :IMO    Class : Class 8

Post Your Answer

Tanav Agarwal from harvest international school, bangalore
Subject :IMO    Class : Class 3

Ans 1:

Samriddhi Debnath from Garden High School, Kolkata
Class : Class 3
The options are wrong

Ans 2:

Sujeev Rayagada from Narayana Olympiad School , CHENNAI
Class : Class 3

Ans 3:

Anhad A from Chrysalis, Bangalore
Class : Class 7
Incorrect options, revise the question or correct the answer options.

Ans 4:

Anhad A from Chrysalis, Bangalore
Class : Class 7
Correction to my previous comment - Values were not clear due to bad image on my computer. Ignore the previous comment.

Post Your Answer

PRANAV VELDURTI from meridian school madhapur, hyderabad
Subject :IMO    Class : Class 5

Ans 1:

SHRADHA MOHAPATRA from APEEJAY SCHOOL, New Delhi
Class : Class 5
I thought that it's in a square shape...……….that is why I did 15 X 15 not 15 X 13....

Ans 2:

tanmay srivastava from DPS Noida, Noida
Class : Class 5
I forgot to attempt this question but when I saw this, it appeared a bit difficult to me, but after calculating, I was sure that the answer is C.

Ans 3:

HARSHIT SOLANKI from Dps, Indore
Class : Class 6
Answer = c

Ans 4:

Sohan R Jolapuri from Amanora School, Pune
Class : Class 5
length is 15 and breadth is 13. There was a silly mistake in it.

Ans 5:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
Answer should be Option B because in the solution the napkin unfolded looks like a square and a square’s all sides are equal so it’s area should be = 15*15= 225 sq.cm .

Ans 6:

Krishiv Chandan Sukul from Seven 11 Scholastic School, Mumbai
Class : Class 6
Thanks!

Ans 7:

Pratham Dave from GNS, Bangalore
Class : Class 7
C is the answer to this question

Ans 8:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Thank-you for giving us the solution

Ans 9:

Ayush Pal from GD Goenka Public School Dakshineswar, West Bengal, India, Kolkata
Class : Class 8

Ans 10:

Aradhya Gavhankar from PICT model school, Pune
Class : Class 5
thANKS FOOR SOLUTION

Ans 11:

divish from Delhi Public School, gurgaon
Class : Class 5

Ans 12:

Sohan R Jolapuri from Amanora School, Pune
Class : Class 5
Answer: C Explanation: Add all the numbers given their to find the length. It is 9+2+4=15 Unfold the napkin. you will get a number 9 at the left hand side with some space left. you will get a number 4 on the right hand side with some space left. if you imagine this or look at this carefully, you will notice that the space left at the either sides is actually 4 and 9 respctively. so, to find the breadth, add thesess no.-- 9+4=13. So l=151, b=13. Area is being asked. Formula of calculating area of a rectangle: lXb= 15 X 13 = 195 cm'2 Hence, option C is correct.

Ans 13:

TANVI DAS from GAIL DAV Public School , Dibiyapur
Class : Class 8
Thank u Sohan, your answer was very helpful :)

Ans 14:

Mathamagician from BGSNPS, Bengaluru
Class : Class 6
thanks. I didn't get the answer at first

Ans 15:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Thank you for the solution :)

Ans 16:

NEEV SINGH from VISHWA BHARATI PUBLIC SCHOOL, Noida
Class : Class 8
answer is c

Post Your Answer

Mudit garg from La blossoms school, Jalandhar
Subject :IMO    Class : Class 8

Post Your Answer

Sounak halder from Kendriya Vidyalaya Cossipore, kolkata
Subject :IMO    Class : Class 8

Ans 1:

Karthik Reddy Munnangi from Chirec International School, Hyderabad
Class : Class 8
This question does not have enough information.

Ans 2:

Tanmayi kiran giri from airforce force public school Vayusena Nagar, Nagpur, nagpur
Class : Class 9
Yes the question has inadequate information and is wrong

Ans 3:

Tamrashi Pani from National Public School, Bangalore
Class : Class 8
inadequate info given

Ans 4:

Pranavram from National Public School, Chennai
Class : Class 8
This question has inadequate information to decide the answer

Ans 5:

Karthik Reddy Munnangi from Chirec International School, Hyderabad
Class : Class 8

Post Your Answer

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Subject :IMO    Class : Class 5

Post Your Answer

Prisha Jora from Adani Public School, Mundra
Subject :IMO    Class : Class 3

Ans 1:

Naisha Gupta from DPS School, Khajaguda, Hyderabad
Class : Class 3

Ans 2:

Shreeda Dewangan from Delhi public school , Raipur
Class : Class 5
answer is c

Ans 3:

Nishant Jawalkar from SNBP School Rahatani, Pune
Class : Class 3

Post Your Answer