International Maths Olympiad Forum By SOF Olympiad Trainer - Page 713
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from ,
Subject :IMO    Class : Class 3

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

ADVAY Rustagi from Vidyashilp Academy , Bengaluru
Class : Class 5

Ans 5:

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

Ans 6:

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

Ans 7:

ANIMESH BEHERA from TIMPANY, VISAKHAPATTNAM
Class : Class 3
A

Ans 8:

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

Ans 9:

Aanya Garg from bombay scottish school , Mumbai
Class : Class 4
Daksh Garg from Bombay Scottish School Mahim Mumbai

Ans 10:

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

Ans 11:

Kashika Goel from DPS Noida, Noida
Class : Class 8

Ans 12:

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

Ans 13:

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

Ans 14:

from ,
Class :
A

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from ,
Subject :IMO    Class : Class 5

Ans 1:

from ,
Class :
An angle has 3 letters .Answer should be both c and d

Ans 2:

from ,
Class :
ANS- D

Ans 3:

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

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from ,
Subject :IMO    Class : Class 8

Ans 1:

from ,
Class :
Your answer is wrong. If the angle is 45, the direction will be south-west.for north-west, angle should be 135.

Ans 2:

from ,
Class :
Your answer is wrong. If the angle is 45, the direction will be south-west.for north-west, angle should be 135.

Ans 3:

from ,
Class :
D

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from ,
Subject :IMO    Class : Class 3

Ans 1:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3

Ans 2:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3

Ans 3:

from ,
Class :
A

Ans 4:

Samir Ruparelia from RSKP, Junagadh
Class : Class 3
A

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from ,
Subject :IMO    Class : Class 3

Ans 1:

from ,
Class :
C

Ans 2:

from ,
Class :
C

Ans 3:

from ,
Class :
C 24

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from ,
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

from ,
Class :
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:

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

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:

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

Ans 4:

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 5:

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 6: (Master Answer)

from ,
Class :
The correct answer is C.

Ans 7:

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

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:

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

Ans 2:

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

Ans 3:

Akshaj V from PSBB Senior Secondary School, Chennai
Class : Class 7

Ans 4:

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 5:

from ,
Class :
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 6:

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

Ans 7:

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

Ans 8:

Dhruva from VSSIPS, Bangalore
Class : Class 8
Option A

Ans 9:

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 10:

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

Ans 11:

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

Ans 12:

from ,
Class :
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 13:

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

Ans 14:

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

Ans 15:

from kalyan, Kalyan
Class : Class 6

Ans 16:

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 17:

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

Ans 18:

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

Ans 19:

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 20:

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

Ans 21:

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.

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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

Ans 2:

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

Ans 3:

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

Ans 4: (Master Answer)

from ,
Class :
The correct answer is B.

Ans 5:

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

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

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