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

User Forum

Ask Your Question
SHIVEN.DINKAR from Delhi Public School, Noida
Subject :IMO    Class : Class 2

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

Ans 2:

Rhyma from dpsnoida, Noida
Class : Class 2
yes

Post Your Answer

AKSHAT BANSAL from DPS, Gurgaon
Subject :IMO    Class : Class 1

Post Your Answer

ANUPRABHA BABU from SREE NARAYANA PUBLIC SCHOOL, KOLLAM
Subject :IMO    Class : Class 6

Ans 1:

Pranav Arun from garib school, Mumbai
Class : Class 8
so easy add alternate odd nos

Post Your Answer

PAHAL SETHIA from Indian school al ghubrah, Muscat
Subject :IMO    Class : Class 5

Ans 1:

PAHAL SETHIA from Indian school al ghubrah, Muscat
Class : Class 5
HAPPY NATIONAL DAY OF OMAN

Post Your Answer

Sumit G from Greenwood High International, Bengaluru
Subject :IMO    Class : Class 6

Ans 1:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 7

Ans 2:

ANUPRABHA BABU from SREE NARAYANA PUBLIC SCHOOL, KOLLAM
Class : Class 8
OPTION D.FIRST WE HAVE TO DIVIDE THE FIRST AND LAST NUMBERS IN ONE COLUMN ,IF WE TAKE THE FIRST COLUMN THE FIRST NUMBER IS 28 AND THIRD NUMBER IS 14. 28 DIVIDED BY 14 IS EQUAL TO 2. THIS 2 IS OBTAINED BY DIVIDING THE MIDDLE NUMBER 10 WITH 5. IN THE SECOND COLUMN THE FIRST NUMBER IS 68 AND THIRD NUMBER IS 17. 17 DIVIDED BY 68 IS EQUAL TO 4. THIS 4 IS OBTAINED BY DIVIDING THE MIDDLE NUMBER 20 WITH 5. SIMILARLY IN THE THIRD COLUMN THE FIRST NUMBER IS 45 AND THE THIRD NUMBER IS 9. 9 DIVIDED BY 45 IS EQUAL TO 5. SO WHEN WE DIVIDE THE MIDDLE NUMBER WITH 5 AND MULTIPLY IT WITH THE THIRD NUMBER WE GET THE FIRST NUMBER. HERE WE HAVE TO FIND THE MIDDLE NUMBER, SO WE HAVE TO MULTIPLY THE ANSWER WE GOT WHEN WE DIVIDED THE FIRST AND THIRD NUMBERS THAT IS 5 WITH 5,THAT IS 25. SO THE MIDDLE NUMBER IS 25 . IF WE WANT TO CHECK THE ANSWER WE CAN DIVIDE THE MIDDLE NUMBER 25 WITH 5 WHICH GIVES US THE ANSWER 5. WHEN WE MULTIPLY 5 WITH THE THIRD NUMBER 9 WE GET THE ANSWER 45 WHICH IS THE FIRST NUMBER. HENCE OUR ANSWER IS PROVED.SO WE CAN SAY THAT OPTION D IS THE ANSWER.

Post Your Answer

Anurag peddi from Niraj International School, Hyderabad
Subject :IMO    Class : Class 7

Ans 1:

Anurag peddi from Niraj International School, Hyderabad
Class : Class 9
Yeah it sucks

Ans 2:

Anurag peddi from Niraj International School, Hyderabad
Class : Class 9
Yeah it sucks

Post Your Answer

AARYA RAHUL MAHAJAN from RUSTOMJEE INTERNATIONAL SCHOOL, Jalgaon
Subject :IMO    Class : Class 3

Ans 1:

Rajveer from DPS, Bengaluru
Class : Class 3
a

Post Your Answer

Ankitha from Hyderabad Public School, Begumpet, Hyderabad
Subject :IMO    Class : Class 5

Ans 1:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
the answer is c not b because 1*140=140,2*70=140,5*28=140,10*14=140

Ans 2:

PAHAL SETHIA from Indian school al ghubrah, Muscat
Class : Class 5
b is the answer

Post Your Answer

shriyans from mount litera zee schhol, Kolkata
Subject :IMO    Class : Class 3

Ans 1:

Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Class : Class 4
Answer:17 Option:D

Ans 2:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
i know the answer

Ans 3:

Rajveer from DPS, Bengaluru
Class : Class 3
d

Post Your Answer

Naman Garg from Deens Academy,Gunjur, Bangalore
Subject :IMO    Class : Class 2

Ans 1:

Naman Garg from Deens Academy,Gunjur, Bangalore
Class : Class 2

Post Your Answer