International Maths Olympiad Forum By SOF Olympiad Trainer - Page 388
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Tintin from Kolkata, Kolkata
Subject :IMO    Class : Class 5

Ans 1:

Rishi from Deens Academy, BENGALURU
Class : Class 7

Ans 2:

Souramita Maity from DPS NOIDA GBN, Noida
Class : Class 9

Ans 3:

Neha jain from Dps Miyapur, Hyderabad
Class : Class 6

Ans 4:

Rishi from Deens Academy, BENGALURU
Class : Class 7
Answer should be B

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 8
The options are wrong because if you read the questions carefully,they said that : How many minimum number of times he made 90 degree turns . The answer should be 1 because if he walks 5 blocks (excluding P) starting from P and then goes downwards only 2 blocks then he reaches point U by taking only one 90 degree turn.

Ans 6:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

Ans 7:

Rehaan Barodawala from Goldcrest Internatational, Navi Mumbai
Class : Class 8

Ans 8:

Soham Das from St. Joseph's School, Jiaganj
Class : Class 7

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Aprajittabakshi from Vibgyorhigh, Bengaluru
Subject :IMO    Class : Class 8

Ans 1:

Yajat from Dps, Bathinda
Class : Class 8

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Tamrashi Pani from National Public School, Bangalore
Subject :IMO    Class : Class 5

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Ishat from DPS, GURUGRAM
Subject :IMO    Class : Class 8

Given below are the steps of construction to construct a quadrilateral ABCD where AB = 3.5 cm, BC = 5.5 cm, CD = 2.4 cm, AD = 6.3 cm and ∠A = 45°. Which of the following steps is INCORRECT ?
Step I : Draw AB = 3.5 cm and construct ∠BAX = 45°.
Step II : With A as centre and radius AD = 6.3 cm, cut off AD = 6.3 cm along AX.
Step III : Join BD. With D as centre and radius 2.4 cm, draw an arc.
Step IV : With B as centre and radius 2.4 cm, draw an arc to cut the arc drawn in above step at C. Join BC, CD to obtain the required quadrilateral ABCD.

AStep I
BStep II
CStep III
DStep IV


the correct answer should be answer D i.e. Step 4.

Ans 1:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
should be option D

Ans 2:

Ketaki Subhash Ghatol from CSA Satara, Satara
Class : Class 8

Ans 3:

Ambati Daivik from Kendriya Vidyalaya, Dharwad
Class : Class 10
yes the option is D

Ans 4:

Ayaan jamal from Dddddd, Delhi
Class : Class 5
yes true...cuz the last line which it is telling to construct is not the actual one

Ans 5:

Arnav Diwan from F.A.I.P.S Kuwait, Kuwait
Class : Class 10
4 and 3 both are wrong as in 3rd one it says to join diagonals which is useless and 4th one you know why

Ans 6:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
Yes it should be Option (D) Step IV

Ans 7:

Arnav Diwan from F.A.I.P.S Kuwait, Kuwait
Class : Class 10
Step 4 and 3 both are incorrect

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Shayan Bari from Kendriya Vidyalaya, Katihar
Subject :IMO    Class : Class 7

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Lakshmi from FPS, Bangalore
Subject :IMO    Class : Class 6

Ans 1:

Kavitharini Joseph from HUS, Chennai
Class : Class 6
how?

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Tamrashi Pani from National Public School, Bangalore
Subject :IMO    Class : Class 6

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RUKU from raj school , GAYA
Subject :IMO    Class : Class 10

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Shourya Bhushan from DPS Gurgaon, Gurgaon
Subject :IMO    Class : Class 5

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Rama Panda from tathva, tokyo
Subject :IMO    Class : Class 5

Ans 1:

Aditri Sultania from RBK Global School, Mumbai
Class : Class 5
answer is option C

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