International Maths Olympiad Forum By SOF Olympiad Trainer - Page 637
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Sanjoy Kundu from Krishna far Collegiate School, krishnagar
Subject :IMO    Class : Class 3

Ans 1:

Anush Tripathi from St Pauls School , New Delhi
Class : Class 3

Ans 2:

Advay Rustagi from Vidyashilp Academy , Bengaluru
Class : Class 5
aa=ans

Ans 3:

ANIMESH BEHERA from TIMPANY, VISAKHAPATTNAM
Class : Class 3
A

Ans 4:

shreyash rawat from podar international school, pune
Class : Class 8

Ans 5:

Advay Rustagi from Vidyashilp Academy , Bengaluru
Class : Class 5

Ans 6:

Kashika Goel from DPS Noida, Noida
Class : Class 7

Ans 7:

Aanya Garg from bombay scottish school , Mumbai
Class : Class 2
Daksh Garg from Bombay Scottish School Mahim Mumbai

Ans 8:

Anagh Agrawal from Billabong high, JABALPUR
Class : Class 3
A

Ans 9:

Advait Prasad Joshi from podar international school, pimpri, pune
Class : Class 7

Ans 10:

ABIMANYU UDAYAKUMAR from NARAYANA ETECHNO SCHOOL, CHENNAI
Class : Class 3

Ans 11:

Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Class : Class 5
A

Ans 12:

Lavith karn from Euro school wakad, pune
Class : Class 3

Ans 13:

shadman khan from international school guwahati, Guwahati
Class : Class 4
A

Ans 14:

Advait Prasad Joshi from podar international school, pimpri, pune
Class : Class 7
A

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bhavya garg from la bloosom school , jalandhar
Subject :IMO    Class : Class 5

Ans 1:

Shrutika Hota from St.johns school, Sambalpur
Class : Class 5
ANS- D

Ans 2:

VATSAL.KHANDELWAL.5C.dpsn from DPS NOIDA, NOIDA
Class : Class 5
An angle has 3 letters .Answer should be both c and d

Ans 3:

Ansh from Delhi Public School Bopal, Ahmedabad
Class : Class 8
D)

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Bhavika Rakesh from VIBGYOR HIGH BALEWADI, Pune
Subject :IMO    Class : Class 8

Ans 1:

Maneesh Manoj from Podar International, Nagpur
Class : Class 9
Your answer is wrong. If the angle is 45, the direction will be south-west.for north-west, angle should be 135.

Ans 2:

Sachin from Zvsvdv, Xggxhd
Class : Class 7
D

Ans 3:

Maneesh Manoj from Podar International, Nagpur
Class : Class 9
Your answer is wrong. If the angle is 45, the direction will be south-west.for north-west, angle should be 135.

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neel niharika from JPHS , Jaipur
Subject :IMO    Class : Class 3

Ans 1:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3
A

Ans 2:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3

Ans 3:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3

Ans 4:

shadman khan from international school guwahati, Guwahati
Class : Class 4
A

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neel niharika from JPHS , Jaipur
Subject :IMO    Class : Class 3

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Dikshant ojha from Arya Gurukul, kalyan
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
It has been assumed to be 72 Kg. It is a hypothetical situation.

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Subject :IMO    Class : Class 5

Ans 1:

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Class : Class 9
everything is written in centimetre not in metre.

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
In the figure 'cm' is written, the solution has 'm' in it. SOF please correct it to avoid confusion.

Ans 3: (Master Answer)

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

Ans 4:

Shamvabi Samanta from Gitanjali Primary School,ICSE, Hyderabad
Class : Class 9
Question has been formed wrongly in terms of unit of measurement as all areas should either be in cm or in m.

Ans 5:

divish from Delhi Public School, gurgaon
Class : Class 5
all should be in cm or m question is wrong or else the answer is (d),(C),(a),(b)

Ans 6:

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

Ans 7:

KUSHAGRA BANSAL from ST PAULS SCHOOL , Udaipur
Class : Class 6
The answer is C.

Ans 8:

divish from Delhi Public School, gurgaon
Class : Class 5

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Subject :IMO    Class : Class 5

Ans 1:

Akshaj V from PSBB Senior Secondary School, Chennai
Class : Class 6

Ans 2:

TANVI DAS from GAIL DAV Public School , Dibiyapur
Class : Class 8
Answer is D, because 2m for EACH knot, so multiplying by 4 gives 8. Then adding to 120 gives answer 128. As this answer is not in options A, B and C, answer is D, none of these

Ans 3:

Dhruva from VSSIPS, Bangalore
Class : Class 8
118 sq.cm

Ans 4:

Dhruva from VSSIPS, Bangalore
Class : Class 8
None of these

Ans 5:

Raaya Acharya from Kendriya Vidayala DRDO, BANGALORE
Class : Class 5
c

Ans 6:

Gaurav Gupta from DPS International Gurgaon, Gurgaon
Class : Class 5
Answer is C: 122. It says 2m is required for tying the "knots" which means 2m is the total length consumed the all knots. Had it said that 2m is required for each knot then the answer would be 128m.

Ans 7:

Aditri Sultania from RBK Global School, Mumbai
Class : Class 5
In the question it is written 2m for knots, which means 122m of rope is required. If it would be given 2m for each knot then the answer is 128m.

Ans 8:

Shivsnsh from aps, udhampur
Class : Class 6
Ans is 122 (4×30=120 2=122

Ans 9:

Shreyas Vinod from EUROSCHOOL WHITEFIELD, BANGALORE
Class : Class 9
Answer should be Option C, not D, because 2 meter for knots is mentioned. It is not mentioned that 2 m is required for each knot.

Ans 10:

Pratham Dave from GNS, Bangalore
Class : Class 7
C is the answer to this question but it is showing that D is the answer. Master answer required

Ans 11:

Rudra Tripathi from DPS Noida, Noida
Class : Class 10
The answer is A

Ans 12:

Siddarth Rastogi from Greenwood High Int'l School, Bangalore
Class : Class 5
Answer: 128Explanation:Perimeter = 30 x 4 = 120Space for knots = 2 x 4 = 8 (each knot = 2m)Total (answer) = 30 x 4 2 x 4 = 128 m 128 > 120, 118 or 122 so option D. None of these is the correct option

Ans 13:

Dhruva from VSSIPS, Bangalore
Class : Class 8
Option A

Ans 14:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5
option d according to SOF but it should be option c as it has said for the knots. The word ''knots'' is in plural form which means there are many knots which means it will be a l the knots counted

Ans 15:

from kalyan, Kalyan
Class : Class 6

Ans 16:

Tejas Agarwal from Prudence School , New Delhi
Class : Class 10
I agree with answer 14

Ans 17:

from kalyan, Kalyan
Class : Class 6
The answer is (D)

Ans 18:

Samarth Sabari from GIIS, Singapore
Class : Class 9
All knots or each knot?

Ans 19:

Kurma Krishna chaitanya from Defence Laboratory School RCI, Hyderabad
Class : Class 7
128 sq cm

Ans 20:

YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Class : Class 8

Ans 21:

Dhruva from VSSIPS, Bangalore
Class : Class 8
118 sq.cm

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YASH SAH from DELHI PUBLIC SCHOOL MIS DOHA, Doha
Subject :IMO    Class : Class 5

Ans 1:

J Srinidhi from narayana, Hyderabad
Class : Class 7
The correct answer is B.

Ans 2: (Master Answer)

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

Ans 3:

Harini Srinivasan from Air Force School Hebbal, Bengaluru
Class : Class 8
answer is b

Ans 4:

J Srinidhi from narayana, Hyderabad
Class : Class 7

Ans 5:

J Srinidhi from narayana, Hyderabad
Class : Class 7
SolutionArea of larger rectangle = (22 × 8) sq. cm= 176 sq. cmArea of unshaded rectangle = (7 × 6) sq. cm= 42 sq. cmArea of square = (4 × 4) sq. cm = 16 sq. cm∴ Area of shaded region= 176 sq. cm – (42 16) sq. cm= 118 sq. cm

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sasthree from Jain Heritage Kondapur, Hyderabad
Subject :IMO    Class : Class 4

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