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Megha Hegde from PSBBLLA, Bengaluru
Subject :IMO    Class : Class 7

Ans 1:

Sriyansh from Surabhi , Hosapete
Class : Class 9
It's simple addition and subtraction. The total cost of both toys is 52.45+25.32=77.77 You gave him a hundred rupee note. So you gave him 22.23 rupees morethe actual prize which you would recieve as change. So the answer is 22.23 (100-77.77=22.23)

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EKLAVYA GONDULE from DPS BHILAI, Bhilai
Subject :IMO    Class : Class 5

Ans 1:

Mystic Girl from NPS, Bnagalore
Class : Class 6
How is the answer B?

Ans 2:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 8
It's cofusing

Ans 3:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7
it should be C

Ans 4:

Sunita from Dps, Greater Noida
Class : Class 9

Ans 5:

KRITHYA GUPTA from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 7

Ans 6:

Pratham Dave from GNS, Bangalore
Class : Class 7
Master answer required

Ans 7:

Suhani Agarwal from St. Mary's ICSE School, Mumbai
Class : Class 8

Ans 8:

Jeronee from Christwood School, PERUMBAKKAM
Class : Class 5

Ans 9:

Rayansh Mishra from VIBGYOR HIGH, Pune
Class : Class 7
All transversal lines look perpendicular

Ans 10:

Pulin Sharma from Marble Arch School, Mumbai
Class : Class 6
The answer is C] GH Because if we count the blocks in AB then, it's4 If we count the blocks in GH then, it's4 THIS S MY FORMULAE

Ans 11:

Sof Team from Sof Olympiad Trainer Helpdesk, Bangalore
Class : Class 8
do not worry sof will make the same mistake on paper

Ans 12:

Amogha from Hindustan international school, Guindy, Chennai
Class : Class 8
B is the correct answer guys, look at the blocks carefully.

Ans 13:

ARADHYA AGARWAL from NEW ERA PROGRESSIVE SCHOOL, Korba
Class : Class 8
Answer is C

Ans 14:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 6
Ans is C..... Olympiad Trainer please give master answer or solution.

Ans 15:

Aditya Sai Kedarisetty from Sri Kumarans childrens Academy DKS, Bangalore
Class : Class 7
This question is itself wrong..

Ans 16:

Niharikaa Pande from BILLABONG HIGH INTERNATIONAL SCHOOL MALAD, Mumbai
Class : Class 6

Ans 17:

Rushil Arora from DPS, New Delhi
Class : Class 5
the answer should be C

Ans 18:

Niharikaa Pande from BILLABONG HIGH INTERNATIONAL SCHOOL MALAD, Mumbai
Class : Class 6
It is B since GH is not perpendicular by the smallest of angles. EF is perpendicular since if you look at the triangles or 5-sided shapes that are made when lines AB and EF come through a square with an angle not equal to 45 degrees, the sizes are the same. This shows that AB and EF are a pair of perpendicular lines.

Ans 19:

Yajat Manoj from Vibgyor, Bengaluru
Class : Class 5
right

Ans 20:

Sinjini Chakraborti from Indus Valley World School , Kolkata
Class : Class 7

Ans 21:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
ans 7 is right. perpendicular = 90 degree intersecting straight lines

Ans 22:

Prajwal Thakur from South Point High School, Kolkata
Class : Class 9
The answer should be C

Ans 23:

Saanvi Jain from Lotus Valley International School, Noida
Class : Class 5
the answer is d as the line needs to be a proper slant and only i-j is properly slanted

Ans 24:

Anirudh Bagri from AMNS, Mumbai
Class : Class 5
question itself is wrong

Ans 25:

prarabdh thakur from podar international school, nashik
Class : Class 4
ans is c

Ans 26:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
Wrong options SOF.!!!!!! Do you want us to fail

Ans 27:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8

Ans 28:

navya from Gyanshree, Noida
Class : Class 5
OMG, the question itself is wrong

Ans 29:

Shreejal moharana from DPS Greater Faridabad, Faridabad
Class : Class 8
b is totally correct just see the blocks carefully

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NACHIKET KRISHNAN from THE MODERN SCHOOL, FARIDABAD
Subject :IMO    Class : Class 4

Ans 1:

DHRUV.KHOSLA.4.lvisn from Lotus Valley International School Noida, Noida
Class : Class 4
d

Ans 2:

from DAV, Chennai
Class : Class 8
d

Ans 3:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
no , its b.

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Adwait Shiva from Udgam School For Children, Ahemdabad
Subject :IMO    Class : Class 5

Ans 1:

Rayna Agarwal from St. Xaviers High School, Gurgaon
Class : Class 5
The answer should be C because in the first figure there are prependicular lines in the bottom in figure 2 there are prependicular lines all four sides near the arrows and in figure 3 there are prependicular lines at the bottom while there are no prependicular lines in figure 4 as they are all acute and obtuse angles so, the answer should be C not D.

Ans 2:

prarabdh thakur from podar international school, nashik
Class : Class 4

Ans 3:

Ridit Mishra from Delhi Public School, Gurgaon
Class : Class 8

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 8
But what about the curved arrow

Ans 5:

Shreyas Singh from Podar International School, Pune
Class : Class 6

Ans 6:

Ayushi Chatterjee from DPS Noida, Noida
Class : Class 5
Angles consideration is confusing ....sometime inner and sometime outer angle is consider ....actually SINGLE LINE FIGURE SHOULD BE GIVEN

Ans 7:

Harsh Sobti from the samhita academy, BLR
Class : Class 5

Ans 8:

Clianta Nagi Reddy from Pinnacle High InternationL School, Mumbai
Class : Class 4

Ans 9:

Riddhiraj Saha from St. Xeviers Institution , Panihati, Kolkata
Class : Class 8

Ans 10:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
it should be a. thats what my supery dupery expert dad said

Ans 11:

Monika Bhattacharya from the lexicon international school kalyaninagar, pune
Class : Class 5
D cannot be the answer at all.

Ans 12:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3
C

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 8
All figures have perpendicular lines

Ans 14:

Anika Saha from New Town School, KOLKATA
Class : Class 6
how

Ans 15:

NAMAN SINGH from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad
Class : Class 8
i also got it wrong

Ans 16:

Arav Jain from Global edge school, Hyderabad
Class : Class 5
How

Ans 17:

Rohan TR from Sri Aurobindo memorial school, Bangalore
Class : Class 6
It is c

Ans 18:

Pratham Dave from GNS, Bangalore
Class : Class 7
D is the answer to this question because all the lines are perpendicular and in the 3rd one the bottom lines are perpendicular

Ans 19:

somesh from Centre point katol road, Nagpur
Class : Class 6
it is d

Ans 20:

Anirudh Bagri from AMNS, Mumbai
Class : Class 5
'c' = correct

Ans 21:

Shamvabi Samanta from Gitanjali Primary School,ICSE, Hyderabad
Class : Class 7
It should be C as it is written that we have to find the perpendicular line for each figure, so there are three figures with perpendicular line but if we consider how many perpendicular lines are there in this picture then it should be 4. This answer is absolutely wrong.

Ans 22:

Amlan choudhury from GD Birla center for education , Kolkata
Class : Class 7

Ans 23:

Uzair Khan from Narayan Olympiad School, Chennai
Class : Class 5

Ans 24:

Siddarth Rastogi from Greenwood High Int'l School, Bangalore
Class : Class 5
A perpendicular line is 90 degrees, last one doesn't count as 90 degrees, so C

Ans 25:

Riddhiraj Saha from St. Xeviers Institution , Panihati, Kolkata
Class : Class 8

Ans 26:

Riddhiraj Saha from St. Xeviers Institution , Panihati, Kolkata
Class : Class 8
All 4 figure has perpendicular line along perimeter

Ans 27:

prarabdh thakur from podar international school, nashik
Class : Class 4
yes

Ans 28:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
Something is wrong here. We have to confirm about it.

Ans 29:

TRISHA SINGH from St. Joseph Shaktinagar, SONEBHADRA
Class : Class 7
CONFUSING QUESTION

Ans 30:

Ridit Mishra from Delhi Public School, Gurgaon
Class : Class 8

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Faraz Khan from Rassaz International, Mumbai
Subject :IMO    Class : Class 6

Ans 1:

Carrie Goyal from OPBMS, Mandi Gobindgarh
Class : Class 7
according to bodmas d option is correct

Ans 2:

DIPANWITA MAITI from SPINGDALES SCHOOL PUSA ROAD, New Delhi
Class : Class 9

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
None of the given options is correct .

Ans 4:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
none of the options is correct

Ans 5:

Agastya Soni from DPS Whitefield, Bengaluru
Class : Class 6
It should be 0.1666731750

Ans 6:

Rannvijay Singh from Palms Middle School, LA, Los Angeles
Class : Class 7
none of the options are correct and the solution makes no sense the correct answer is 0.0000515686sof is glitched

Ans 7:

Kyra from Accadis international school, Germany
Class : Class 6

Ans 8:

Jaiansh Dabas from St Xaviers High School, Gurgaon
Class : Class 7
I tried it a 1000 times with calculator it is giving 0.0000515686

Ans 9:

Parth Kaushish from MDPS, Faridabad
Class : Class 6
the correct answer is going to be 0.0000515686 . I have tried it 10 times. Its given wrong pls correct it SOF

Ans 10:

Vihaan Binaykia from Riverside, AHMEDABAD
Class : Class 5
Answer given is correct:0.0001289 - (0.0000000274 x 1293) 0.0000419032=(0.0001289 - 0.0000354282) 0.0000419032=0.0000934718 0.0000419032=0.00011353750

Ans 11:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Ya Parth Kaushish you are right. Got it Vihaan :) Thanks

Ans 12:

Faraz Khan from Rassaz International, Mumbai
Class : Class 6
none of the options are correct

Ans 13:

Shreyas K from Kennedy High The Global School, Hyderabad
Class : Class 9
correct answer is 0.0000515686. So, none of the provided options are correct.

Ans 14:

Rannvijay Singh from Palms Middle School, LA, Los Angeles
Class : Class 7

Ans 15:

Kumar Krishiv from Apeejay School, Noida
Class : Class 8
None of these are correct I have done in calculator

Ans 16:

Shourya Kumar from Delhi Public School Noida, Noida
Class : Class 9
it should be 0.166674175

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Aditya Singh from Vibgyor Haralur Bangalore, Bangalore
Subject :IMO    Class : Class 3

Ans 1:

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

Ans 2:

ANUSKA from DPS, NOIDA
Class : Class 3
TENS

Ans 3:

Aditri from doha modern indian school, doha
Class : Class 6
tens

Ans 4:

Aarna Agarwal from Manav Rachna International School, Gurgaon
Class : Class 5

Ans 5:

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

Ans 6:

from AHPS,
Class : Class 3

Ans 7:

ANUSKA from DPS, NOIDA
Class : Class 3
TENS

Ans 8:

Kashika Goel from DPS Noida, Noida
Class : Class 6

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Aditya Singh from Vibgyor Haralur Bangalore, Bangalore
Subject :IMO    Class : Class 3

Mrs Sharma wrote a 2-digit number on the blackboard. Three students Lalit, Vinay and Prashant said the following statements about that number.
Lalit : "It is a 2-digit number but not the least".
Vinay : "It is the predecessor of least 3-digit number".
Prashant : "It is having three different digits".
If only two of the three students said the truth, who is definitely lying?

A Lalit
B Vinay
C Prashant
D Both (A) and (B)


Ans 1:

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

Ans 2:

Saanvi from DPS INTERNATIONAL SCHOOL, Singapore
Class : Class 4

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D 183 from Lotus Valley International School, Noida
Subject :IMO    Class : Class 4

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Gireesha from innocent hearts school jalandhar, Jalandhar
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

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

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Priya Lalwani from Sophia Sr Sec School, Bikaner
Subject :IMO    Class : Class 8

Ans 1:

PRAFUL from KENDRIYA VIDYALAYA MYSORE , MYSURU
Class : Class 8

Ans 2:

J Gowshika from velammal vidyalalaya, Chennai
Class : Class 8
its given c as the ans in the solutions pls explain how

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