International Maths Olympiad Forum By SOF Olympiad Trainer - Page 322
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harry potter from Hogwarts school of witchcraft and wizardry , london
Subject :IMO    Class : Class 4

Ans 1:

Saksham Chanani from Sri Sri Academy, Kolkata
Class : Class 7
C

Ans 2:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 7
c

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Manav from TFS Gunjur, Bengaluru
Subject :IMO    Class : Class 4

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Harjot Singh from GIIS KL, Kuala Lumpur
Subject :IMO    Class : Class 5

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SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 8

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PRAMIT MAHAJAN from MUSHTIFUND HIGH SCHOOL, PANAJI
Class : Class 5
C

Ans 3:

Romir Mehrotra from Jamnabai Narsee School, Mumbai
Class : Class 8
they should learn HCFthe answer is 15 and not 12have not counted another 3

Ans 4:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5

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Shubhayu Banerjee from DPS Secunderabad - Nacharam, Hyderabad
Subject :IMO    Class : Class 3

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Harsh Kumar from Maharishi Vidya Mandir, Guwahati
Subject :IMO    Class : Class 7

Ans 1:

Preetham Sivalingam from Delhi Public School Bangalore East, Bengaluru
Class : Class 9
All fruits together = 100% OR x Apples = 30% of x OR 30/100 of x = 3/10 x Oranges= 50% of (x - 3/10 x) OR 1/2 of (x - 3/10 x) = 1/2 of 7/10 x = 7/20 x Pears = 20/20(All Fruits) - {6/20(Apples) + 7/20(Oranges)} = 20/20 - 13/20 = 7/20 Therefore it is clear that 7/20 of all fruits is pears. Hope this was helpful!

Ans 2:

Pratham Dave from GNS, Bangalore
Class : Class 7

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Anika from Alphabet, CHENNAI
Subject :IMO    Class : Class 3

If X is a 4-digit number, then find X using the given clues.
• The sum of all its digits is 17.
• The sum of the digits at the tens and hundreds place is the digit at the thousands place.
• The digit at the ones place is one less than the digit at thousands place.
• The digit at tens place is twice the digit at hundreds place.
• The digit at hundreds place is 2.

A4625
B6425
C6245
D5246


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Ahaana from Pathways school, Gurgaon
Subject :IMO    Class : Class 6

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svayumbhu sharma from jodhamal public school, jammu
Subject :IMO    Class : Class 8

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svayumbhu sharma from jodhamal public school, jammu
Subject :IMO    Class : Class 8

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svayumbhu sharma from jodhamal public school, jammu
Subject :IMO    Class : Class 8

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