International Maths Olympiad Forum By SOF Olympiad Trainer - Page 385
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Shaik Aafreen from Sherwood High, Bangalore
Subject :IMO    Class : Class 5

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Tanishka Tripathi from Bal Bharti Public School, Khargone
Subject :IMO    Class : Class 3

Ans 1:

MANIT from Lotus valley, Gurgaon
Class : Class 3
the answer should be monday or tuesday but,they have not given the correct answer or tuesday. SOF has been wrong many times.

Ans 2:

Arohan from VSV, Kolkata
Class : Class 3
This is incorrect. The correct answer should be Monday. The first day from 20th Sep is the 21st of Sep and not the 20th of Sep. Hence, the 7th day should be a Mon and so will all multiples of 7 starting the 20th of Sep.

Ans 3:

Kushagra Sah from Bahrain Indian School, Manama Bahrain
Class : Class 9
Incorrect.It should be Friday Or Monday.How could it be Sunday?

Ans 4:

Suchi shah from AIS, Ahmedabad
Class : Class 3
Answer should be monday

Ans 5:

Risha Maithani Chaurasia from Euro School Kharadi, Pune
Class : Class 3
monday is correct answer

Ans 6:

Kushagra Sah from Bahrain Indian School, Manama Bahrain
Class : Class 9

Ans 7: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B):  1st day = 20th sep = Monday
8th day = 27th sep = Monday
15th day = 4th oct = Monday
22nd day = 11th oct = Monday
29th day = 18th oct = Monday
35th day = 24th oct = Sunday


Ans 8:

Moksh from NPS, Singapore
Class : Class 6
Incorrect. The first day "FROM" 20 Sep is 21 Sep. Correct answer should be Monday.

Ans 9:

Moksh from NPS, Singapore
Class : Class 6

Ans 10:

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

Ans 11:

Ved Kulkarni from vidya pratishthan's magarpatta city public school, Pune
Class : Class 3
Yes the correct answer is Monday not Sunday. Please correct it

Ans 12:

MANIT from Lotus valley, Gurgaon
Class : Class 3

Ans 13:

Rudranksh Chiranjib Guha from Sri Sri Ravishankar Vidya Mandir, Mulund, Mumbai
Class : Class 4
Yeah... The answer should be option D

Ans 14:

Kushagra Sah from Bahrain Indian School, Manama Bahrain
Class : Class 9
Incorrect

Ans 15:

MANIT from Lotus valley, Gurgaon
Class : Class 3
sunday is completely wrong .SOF is getting it things wrong many times

Ans 16:

Vinay Dev Jhari from Delhi Public School, Noida
Class : Class 4

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Saumya Namdeo from Jai Bharat English Medium School, Janjgir
Subject :IMO    Class : Class 4

Ans 1:

manish sonkusale from NARAYANA VIDYALAYAM, nagpur
Class : Class 4
Me too don,r know

Ans 2:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7

Ans 3:

manish sonkusale from NARAYANA VIDYALAYAM, nagpur
Class : Class 4
Don,r know the explanation

Ans 4:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7
Why’s the answer is D

Ans 5:

Oscar Maltman from DBSEH, dubai
Class : Class 8

Ans 6:

Siddhi Kher from NHSS Thane, THANE
Class : Class 1
answer is B

Ans 7:

dhanyashree from BVM Global, Chennai
Class : Class 5
B

Ans 8:

manish sonkusale from NARAYANA VIDYALAYAM, nagpur
Class : Class 4
Don,t instead of don,r

Ans 9:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
The correct answer is B

Ans 10:

GAIRIK GHOSH from ST. AUGUSTINE'S DAY SCHOOL, BARRACKPORE, AGARPARA
Class : Class 6
The answer for this question is 'B'

Ans 11:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7

Ans 12:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
The correct answer is B 180

Ans 13:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
Option B 180

Ans 14:

Vaishnavi Sahu from St Johns English School and Junior College, Chennai
Class : Class 5
how can the answer B become can anyone explain.

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Senaraj Chintagumpala from Delhi Public School East, Bangalore
Subject :IMO    Class : Class 3

Ans 1:

Krisha from gurukul, pune
Class : Class 1
This is a Good question for kids

Ans 2:

Advik Singh from GIIS, GHAZIABAD
Class : Class 4

Ans 3:

Kanishk bhati from G D goenka school gzb, ghaziabad
Class : Class 3
its very riddely

Ans 4:

Anagha from DAV, MUMBAI
Class : Class 5
D) Cost of 500 gm of peaches= Rs.8 Cost of 250 gm = Rs. 4 so 250 gm 500 gms = 750 gms = Rs.8 Rs.4 = Rs. 12

Ans 5:

Anagha from DAV, MUMBAI
Class : Class 5

Ans 6: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): Cost of 500 gm of peaches = ₹ 8
Cost of 250 gm of peaches = ₹ 4
Cost of 750 gm (i.e. 250 gm + 500 gm) of peaches = ₹ 8 + ₹ 4 = ₹ 12


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Aadhya Dhiman from Mount Carmel School, Nangal
Subject :IMO    Class : Class 2

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Naitik Mundra from International School Rheintal, Buchs Sankt Gallen
Subject :IMO    Class : Class 7

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, the answer is B, as the admin says.. Because whatever the number might be, it will surely be negative.. example: 50/-23 is negative anyhow

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): A. Multiplication of two integers with unlike signs is always  negative.
B. When a positive integer is divided by a negative integer, the quotient obtained is a negative integer.
C. Product of odd number of negative integers is negative . 
 


Ans 3:

dhakshith from Vidhyaniketan, Coimbatore
Class : Class 8
Option is wrong\Answer is (D)

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IAMLOST from ABC, Pune
Subject :IMO    Class : Class 4

Ans 1:

Yadnya Thakare from Ryan International, Pune
Class : Class 9
A is the answer

Ans 2:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
(A): The best estimate of 795 is 800 .

Ans 3:

Miraya Agarwal from School of india, Bengaluru
Class : Class 6
(A) is the answer

Ans 4:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
(A) because the best estimate of 795 is 800.

Ans 5:

Atharv Rai from The Foundation School , Bangalore
Class : Class 4
a is ans

Ans 6: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): The best estimate of 795 is  800 . 


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AGNIVA MANDAL from DPS Megacity, Kolkata
Subject :IMO    Class : Class 6

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neel kumar from CPS, Pune
Subject :IMO    Class : Class 4

Ans 1:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore
Class : Class 5
Admin is wrong , because the question given the digit used once but admin is using digit 9 multiple time which is wrong , so either question or options is wrong .

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Given digits = 9,8,3,4
Greatest 6 digit no. formed  by these digits = 999843
Smallest 5 digit no. formed by these digits = 33489
Required difference = 999843 - 33489 = 966354


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Ainesh Bhuniya from Utpal Sanghvi, Mumbai
Subject :IMO    Class : Class 3

Ans 1:

Samarth G Aland from PODAR INTERNATIONAL SCHOOL, PIMPRI, PUNE
Class : Class 3

Ans 2:

Amber Mehra from Lotus valley international school , Gurgaon
Class : Class 3

Ans 3:

Amber Mehra from Lotus valley international school , Gurgaon
Class : Class 3
Answer is seven hundred nine(709)

Ans 4:

Hiza Goel from MRIS-14, Faridabad
Class : Class 4
709 is correct.

Ans 5: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): 709 is seven hundred nine.


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