International Maths Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Vedant Sharma from Silver Oaks , Hyderabad
Subject :IMO    Class : Class 6

Ans 1:

ABHIRAM from chirec, HYDERABAD
Class : Class 7
b

Ans 2:

Dishamrutha from indian school of excellence, bangalore
Class : Class 6
I THINK THURSDAY OR MONDAY SHOULD BE EXCLUDED

Ans 3:

anveshi srimal from cathedral and john connon school, mumbai
Class : Class 7
according to me, the ans should be 3 litres. as 1.5 L * 3 = 4.5 L which is the amount used in 3 days(Tue, Wed n Thurs) hence, 7.5 L- 4.5 L=3 LITRES.That, according to me, is the answer

Ans 4:

Falguni from Navkis, Bangalore
Class : Class 7
I think B

Post Your Answer

Vani Bansal from The Gurukul, panchkula
Subject :IMO    Class : Class 9

Ans 1:

Mohit Ahuja from Podar International School, Akola
Class : Class 9
d = 75% of old d ..... => r = 75 %of old r..... volume of sphere =4/3 *pi*r*r*r...... new= 4/3*pi*r*r*r*27/64..... 4/3*pi*r*r*r will cancel out..... volume(new) =27/64 of old, decreased by 37/64, % =37/64*100=3700/64=37*25/16 = 57.81.... therefore answer is opt (D) .....hope you understood!!!!!

Post Your Answer

Ujjwala Jitendra Ghumare from North Point School, Dhule
Subject :IMO    Class : Class 6

Ans 1:

aradhana from Gopalan National School, Bengaluru
Class : Class 3
B

Post Your Answer

harry potter from Hogwarts school of witchcraft and wizardry , london
Subject :IMO    Class : Class 4

Ans 1:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 4
c

Ans 2:

daksh chanani from Sri Sri Academy, howrah
Class : Class 3
C

Post Your Answer

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

Post Your Answer

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

Ans 1:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5

Ans 2:

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

Ans 3:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 5

Ans 4:

Romir Mehrotra from Jamnabai Narsee School, Mumbai
Class : Class 5
they should learn HCFthe answer is 15 and not 12have not counted another 3

Post Your Answer

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

Post Your Answer

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 7
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!

Post Your Answer

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


Post Your Answer

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

Post Your Answer