International Maths Olympiad Forum By SOF Olympiad Trainer - Page 369
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Ishan Priyadarsi from Euro School, BENGALURU
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): Total number of cookies = 12
Number of butter cookies = 4
Number of chocolate cookies = 12 - 4 = 8
Fraction of chocolate cookies = 8⁄12 = 2⁄3


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HIMANK DAKSH from MOTHERS GLOBLE SCHOL, PREET VIHAR A 106 DEHLI 110092
Subject :IMO    Class : Class 2

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Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur
Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): Cost of necklace = ₹ 120
Cost of purse = ₹ 80
Total cost = ₹ 120 +  ₹ 80 = ₹ 200
Thus with ₹ 200, she can buy a necklace and purse so that no money will be left with her.


Ans 2:

Arin Mukherjee from Akshar, Kolkata
Class : Class 5
Right ans is B

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Shubh chawda from D g khetan , Mumbai
Subject :IMO    Class : Class 8

Ans 1:

Anshuman D from MVM, Hyderabad
Class : Class 9
x+1/x=4 So,(x+1/x)^2=4^2=16 x^2+2+1/x^2=16 Since (x-1/x)^2=x^2-2+1/x^2, It will be=(x+1/x)^2-4=16-4=12 So, (x-1/x)=√12 Which is equal to √2×2×3 =2√3

Ans 2:

Anshuman D from MVM, Hyderabad
Class : Class 9
x+1/x=4 So,(x+1/x)^2=4^2=16 x^2+2+1/x^2=16 Since (x-1/x)^2=x^2-2+1/x^2, It will be=(x+1/x)^2-4=16-4=12 So, (x-1/x)=√12 Which is equal to √2×2×3 =2√3

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Ayush Rana from Kv no2 delhi cantt, delhi
Subject :IMO    Class : Class 3

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Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Subject :IMO    Class : Class 6

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Laranya Lalchandani from Delhi Public School Sec-45, Gurgaon
Subject :IMO    Class : Class 4

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Laranya Lalchandani from Delhi Public School Sec-45, Gurgaon
Subject :IMO    Class : Class 4

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Navya Vats from Saint Xavier High School, Noida Extension
Subject :IMO    Class : Class 4

Ans 1:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
Answer is c

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Aarav Srivastav from DWPS , Noida Extension
Subject :IMO    Class : Class 6

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