International Maths Olympiad Forum By SOF Olympiad Trainer - Page 579
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Rahul from , NOIDA
Subject :IMO    Class : Class 4

Ans 1:

Dhairya Godbole from KLE Eng Medium School, SOLAPUR
Class : Class 6
what is the shortest method to solve this question

Ans 2:

Mohnish S from CMR National Public School, Bengaluru
Class : Class 4
Can you please help with solving this question

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Rahul from , NOIDA
Subject :IMO    Class : Class 4

Ans 1:

Asmi Kumat from SHISHUKUNJ INTERNATIONAL SCHOOL, INDORE
Class : Class 8

Ans 2:

BISWADITYA TRIPATHY from Delhi public school Bangalore east, Bangalore
Class : Class 4
i think instead of length , perimeter should have been mentioned

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Rahul from , NOIDA
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

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

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Rishit Sharma from Nehru World School, Ghaziabad
Subject :IMO    Class : Class 7

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Rishit Sharma from Nehru World School, Ghaziabad
Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

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

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Rishit Sharma from Nehru World School, Ghaziabad
Subject :IMO    Class : Class 7

Ans 1:

D Karthikeya Reddy from Sri Chaitanya International School, Guntur
Class : Class 8
the answer is D. =12-[7-{16-(18-(-3))}] = 12-[7-{16-21}] =12-[7-(-5)] =12-12 =0

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Rishit Sharma from Nehru World School, Ghaziabad
Subject :IMO    Class : Class 7

Ans 1:

Satvik B from BVM Global, Chennai
Class : Class 10

Ans 2:

Satvik B from BVM Global, Chennai
Class : Class 10

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Jaydeep Mohapatra from DAV PUBLIC SCHOOL , ANGUL
Subject :IMO    Class : Class 4

Ans 1:

Aaditva from DPS Vasant Kunj, New Delhi
Class : Class 6
The correct answer is B not A, a multiple is NEVER smaller than the number

Ans 2:

Aarav Gupta from TSRS Aravali, Gurugram
Class : Class 5
Correct answer should be B.

Ans 3:

saumit from Narayana E-techno, mumbai
Class : Class 5
Verrrrrrrrrrrrry confusing and tricky

Ans 4:

Radhika Jain from Sushila Birla Girls' School, Kolkata
Class : Class 5
Yes yes. Negative numbers are not in the syllabus of fourth graders.

Ans 5: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 6:

from kalyan, Kalyan
Class : Class 6

Ans 7:

Shaurya Veer from Blooming Dales International School, Sri Ganganagar
Class : Class 8
it is not wrong because multiplying by a negative number gives us the result as a number smaller than the original number for example -2*2=-4

Ans 8:

Ameya Dhuri from Birla Public School, Doha
Class : Class 7
I didn't understand the answer

Ans 9:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 6
The answer is A part as multiplying a number with a negative number gives a number smaller than the number we took to multiply

Ans 10:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4
YES THIS IS TOTTTALLLLYYYY WRONG

Ans 11:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6

Ans 12:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 6
The correct answer is A part

Ans 13:

Ritisha from THE LEXICON I SCHOOL , Pune
Class : Class 7

Ans 14:

Inaaya Syed from ISWK, Muscat
Class : Class 6
The correct answer should be option B.A multiple can never be smaller than the number

Ans 15:

Kabir from Dimensions International College, Singapore
Class : Class 4
It cannot happenThe multiple of a number is always bigger or equal never smaller

Ans 16:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
Answer should be B. Only negative numbers when multiplied by a positive number is a smaller number. Negative numbers are out of syllabus for 4th grader. Hence the given solution is wrong.

Ans 17:

ALICE from Delhi Public School, UDAIPUR
Class : Class 7
The correct answer is B. sof olympiad trainer is wrong.

Ans 18:

Kush Bindal from GIIS, India
Class : Class 6
If we sometimes multiply the no. with fraction we can get the multiple smaller than the number. Eg-2 *1/2=1

Ans 19:

Saathvik Saasthan P from BBHS, Bengaluru
Class : Class 5
it is not wrong because negative numbers' multiples are always lesser than themselves eg. -3x3=-9

Ans 20:

Advika Narkar from VIBGYOR High Airoli, Navi Mumbai
Class : Class 5

Ans 21:

Rohan Singhal from Manav Rachna International School, Gurgaon
Class : Class 5
ans should be B please correct it sof

Ans 22:

Anvi Prabhu from Lodha World School Thane, Thane
Class : Class 6

Ans 23:

Kashyap Shankar from NPS, Singapore
Class : Class 6

Ans 24:

Saanvi Sharma from Harvest International , Bangalore
Class : Class 5
the correct answer is B

Ans 25:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8
ANSWER IS B. When we talk of factors n multiples we usually do not talk about negative numbers

Ans 26:

sauradeep from j v m Shyamali , ranchi
Class : Class 8
MULTIPLES ARE NOT LESS THAN THE NUMBER,THE ANSWER IS GIVEN WRONG

Ans 27:

Deeksha Mittal from JAYPEE PUBLIC SCHOOL, NOIDA, NOIDA
Class : Class 2

Ans 28:

Aarav Gupta from Delhi Public School Bangalore East, Bangalore
Class : Class 4
we can get a multiple smaller than the number by multiplying it by a fraction

Ans 29:

Arjun Gourineni from chirec heydrabad, heydrabad
Class : Class 6
Answer is B

Ans 30:

Siddharth Laxmisha from The Study Lecole Internationale, PUDUCHERRY
Class : Class 6
Negative numbers aren't included in Class 4 syllabus although your answer is correct.

Ans 31:

gayathri from NPS, Bengaluru
Class : Class 3

Ans 32:

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Class : Class 9

Ans 33:

Arihaan Adhikari from Modern Delhi Public School, Sector 87, Faridabad
Class : Class 6
it should be B as multiplying the numbers gives us greater numbers. Guys mine is also the same

Ans 34:

Aanya Shroff from Billabong High International School, Kanpur
Class : Class 6
Multiples are supposed to be equal to or greater than the number. Multiplying by fractions does not mean that it is a multiple...

Ans 35:

Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI
Class : Class 4
Fully wrong

Ans 36:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6
the solution is taking negative numbers which we dont know

Ans 37:

Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI
Class : Class 4

Ans 38:

saumit from Narayana E-techno, mumbai
Class : Class 5
I do not know

Ans 39:

Smita Desai from GOKULDHAM HIGHSCHOOL , MUMBAI
Class : Class 4
Multiplying by does not mean it is a multiple in inv

Ans 40:

Aanya Dahuja from Suncity World School, gurgaon
Class : Class 7
How can a multiple of a no be smaller than the no itself..? Factor can be smaller, not the multiple

Ans 41:

Advika Narkar from VIBGYOR High Airoli, Navi Mumbai
Class : Class 5
We can't talk about syllabus over here but it's wrong only Saathvik and Shaurya I think you did not read that multiples are equal to or greater than the number itself. And FACTOR are smaller than or equal to the number.

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John Calvin from vaels billabong, kottiwakkam
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

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

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Soumyaditya Nandy from Delhi Public School, Navi Mumbai
Subject :IMO    Class : Class 7

Ans 1:

arijit paul from New Town School, Kolkata
Class : Class 9
it is 2cube

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