International Maths Olympiad Forum By SOF Olympiad Trainer - Page 861
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mamta from army public school, ramgarh
Subject :IMO    Class : Class 7

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nishtha from D.P.S., BHIWANI
Subject :IMO    Class : Class 5

Ans 1:

Aarush Thakur from DPS, Gurgaon
Class : Class 6
Ans is 97

Ans 2:

divish from Delhi Public School, gurgaon
Class : Class 5
it was easy if i knew it was a bodmass rule,, my answer came out to be 80 as i didnt put the bodmass rule

Ans 3:

Nishant from NPS, Bengaluru
Class : Class 5
If "-"means '+'," * "means'-',"/"means' * ' and ''+''means'/';then 20x 12+4-16/5=?= 20-12/4+16x5= 20-3+16x5= 20-3+80= 80+20-3= 100-3= 97 :) Well I mixed it up in the last part, so it doesn't count as an answer.

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Anil Dhanwate from ,
Subject :IMO    Class : Class 5

Ans 1:

Pranav Goyal from Delhi Public School,Noida, Noida
Class : Class 6
The answer will be option D.

Ans 2:

Amanjeet Singh from ,
Class : Class 5
in my opinion the answer should be D

Ans 3:

Srinvitha from FIITJEE School Madhapur, Hyderabad
Class : Class 8
the answer is = [ D ] MM = 2000 MDCCX = 1680 MCDLX = 1459 MXLIX = 1049 CMLI = 951 LX = 60

Ans 4:

Arnav Gulati from The Heritage School, Gurgaon
Class : Class 9
Yes correct answer is D. What they have given is wrong

Ans 5:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
Answer to this should be D.C cannot be the correct answer.

Ans 6:

Shaurya Agrawal from Global Indian International School, Pune
Class : Class 5
I agree with you because D is correct.

Ans 7:

ARATRIKA PAHARI from THE BSS SCHOOL, Kolkata
Class : Class 10
My answer is D

Ans 8:

Deepa Sriram from National Public School Bangalore, Bengaluru
Class : Class 3
yes i agree

Ans 9:

Shaurya Agrawal from Global Indian International School, Pune
Class : Class 5
I agree with you because 2000> 1710> 1460> 1049> 951> 60 and not 60> 951> 1460> 1049> 2000> 1710.

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Anil Dhanwate from ,
Subject :IMO    Class : Class 5

Ans 1:

Nishant Doshi from new era senior secondary school nizampura vadodara, Vadodara
Class : Class 7
there are so many wrong questions like this in sof. i request all to contact all to sof

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Nisha Toshniwal from GIIS, Pune
Subject :IMO    Class : Class 3

Ans 1:

Admin from SOF, Noida
Class : Class 10
Answer:B

There was a mistake in the options. It has been corrected now.
Solution
1535+279 = 1814
1984-164 = 1820
Even number between 1814 and 1820 are 1816 and 1818
Sum of 1816 + 1818 = 3634

Ans 2:

Admin from SOF, Noida
Class : Class 10
Answer:B

There was a mistake in the options. It has been corrected now.
Solution
1535+279 = 1814
1984-164 = 1820
Even number between 1814 and 1820 are 1816 and 1818
Sum of 1816 + 1818 = 3634

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Nisha Toshniwal from GIIS, Pune
Subject :IMO    Class : Class 3

Ans 1:

Afeefa from Afeefa, Bhubaneshwar
Class : Class 4
It is very horrified that answer given is wrong..............should be B.

Ans 2:

Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur
Class : Class 9
(B)

Ans 3:

Abhishree from Loreto convent, lucknow
Class : Class 3
answer is wrong because given term respectively is givenabhishree singh lucknow india

Ans 4:

Samriddhi Debnath from Garden High School, Kolkata
Class : Class 3
Yes I agree with Sanjivani Saha that Kushan is correct The answer given by SOF is wrong

Ans 5:

Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur
Class : Class 9
the answer is (B)

Ans 6:

MANIT from Lotus valley, Gurgaon
Class : Class 3
it was a trick question and answer should be D only

Ans 7:

Sanjivani Saha from Chrysalis High, Bangalore
Class : Class 8
kushaan is correct.Answer is B.Their answer is incorrect.SOF ofte makes mistakes.It is very bad

Ans 8:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is B

Ans 9:

Kushaan kochhar from Vasant Valley school , New Delhi
Class : Class 5
Answer is b. Their answer is wrong

Ans 10:

Radhika from DPS, Dubai
Class : Class 3

Ans 11:

Harseerat from Saupin's school, Chandigarh
Class : Class 3
Answer is A because it is written respectively

Ans 12:

maanya from springdales, delhi
Class : Class 3
only A is correct as term respectively is used

Ans 13:

Anil Jacob Varghese from GIIS, singapore
Class : Class 7
The answer given by SOF is wrong.Please don't confuse us.

Ans 14:

vineet8026@gmail.com from dps, Doha
Class : Class 1
The answer is "B".sofor is wrong

Ans 15:

Advaitt S Koduri from Presidium Noida 31, NOIDA
Class : Class 6
both answers A

Ans 16:

maulik from MDPS, delhi
Class : Class 2
Answer is B only as it is written respectively and accordingly and - signs are shown.

Ans 17:

Janam Patel from R M G Maheshwari, Surat
Class : Class 8
Answer is A

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Siddhant Pandey from The Shishukunj International School, Indore
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
There are 25 hexagons in the figure. For 2/5 to be left unshaded, 3/5 of them must be shaded. Now, total no. of hexagons which must be shaded are:- (3/5)x25=15

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HIMANISH BASU from APS BANGALORE , Bangalore
Subject :IMO    Class : Class 3

Ans 1:

Vikram from AVM, Mumbai
Class : Class 5
The answer is D. Value of Q is 4 and 4 is 6 less than 10.

Ans 2:

Yajur Nag from dps vk, delhi
Class : Class 5
Answer should’ve been D

Ans 3:

Dhairya Godbole from KLE Eng Medium School, SOLAPUR
Class : Class 6
Correct Answer is D. Q is 4, hence, 6 less than 10.

Ans 4:

ANWESHA SUNDARAY from KV, PURI, PURI
Class : Class 4
Answer is 4 option B

Ans 5:

Yajur Nag from dps vk, delhi
Class : Class 5
4 should’ ve been the answer given by them

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R S Hansika from MOUNT LITERA ZEE SCHOOL, TIRUPUR
Subject :IMO    Class : Class 3

Ans 1:

neel niharika from JPHS , Jaipur
Class : Class 4
good

Ans 2:

Joshua Antony from Clarence Public School, Bangalore
Class : Class 3
The logic is simple here.. Rohan delivers newspapers on weekdays (i.e) Monday to Friday. The only condition that would address the number of papers delivered on Sunday is if he deliver's 14 more papers on Sunday than on weekdays. So the answer is 1.

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Yashini from Velammal vidhyala school, Madurai
Subject :IMO    Class : Class 4

Ans 1:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
3/20Thank you Priti Srivastav

Ans 2:

shilpi from euroschool,Thane, thane
Class : Class 4
Answer is option B or 3/10

Ans 3:

Admin from SOF, Noida
Class : Class 10
Answer : B
Milk left for the evening = 1 - 2/8 = 6/8
Milk consumed in the evening = 3/5 of 6/8 = 3/5 x 6/8 = 18/40
Total milk consumed = 2/8 + 18/40 = 28/40
Milk left = 1 -28/40 = 12/40 = 3/10

Ans 4:

Avyukt D from The Kalyani School , Pune
Class : Class 9

Ans 5:

Lekh goyanka from School of scholars, Malkapur
Class : Class 4
3/20 is correct

Ans 6:

Sabetha Kasinathan from Mlzs, Hyderabad
Class : Class 4
the correct answer is 3/20 which is C

Ans 7:

Chinmay G from SSRVM , Mulund, Mumbai
Class : Class 5
3/10 is correct

Ans 8:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
3/10

Ans 9:

RAJWARDHAN from APJEE, MUMBAI
Class : Class 4
3/10

Ans 10:

Kaushik from pebble, Bangalore
Class : Class 5
3/20

Ans 11:

Azara from Greenwood High, b
Class : Class 5
Answer is C

Ans 12:

from , Allahabad
Class : Class 6
It is 3/20 because- if you add 2/8 and 3/5 =17/20 which he drank =20/20-17/20=3/20

Ans 13:

Pranika Thakkar from Jamnabai Narsee School , Mumbai
Class : Class 5

Ans 14:

Avyukt D from The Kalyani School , Pune
Class : Class 9
blah blah blahwhatever

Ans 15:

varghese j veliyath from Mar Athanasius International School , Cochin
Class : Class 3

Ans 16:

Anushka kumar from DPS paradip, odisa
Class : Class 9
2/8 (=10/40) in the morning left only 6/8 3/5 of 6/8 = 18/40 leftover milk is = 1-(10/40) - (18/40) = 12/40 = 3/10

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