International Maths Olympiad Forum By SOF Olympiad Trainer - Page 369
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Prachi from Holy Child Public school, Faridabad
Subject :IMO    Class : Class 4

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Pragun goel from Venkateshwar International School, Delhi
Subject :IMO    Class : Class 5

Ans 1:

Arunava hury from KV1 saltlake , Kolkata
Class : Class 6
Option B)

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is B because 3645279+2153467=5798746. 5798746 will be rounded to its nearest ten thousand, which is 5800000, since 98746 will be rounded to nearest ten thousand, which is 100000, 1 will be carried to the lakhs place, or, you can say that 3645279 and 2153467 will be rounded to the nearest ten thousand, which will be 3650000 and 2150000, respectively. 3650000+2150000=5800000.

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Shruti Hegde from Mount Litera Zee school, Bengaluru
Subject :IMO    Class : Class 8

Ans 1:

Aman Sumod from Chinmaya Vidyalaya, KANNUR
Class : Class 8
The answer is 4. There are 4 prime factors: 2,3,5 and 7

Ans 2:

Hari Bhaskar from bgs, JP Nagar 7th Phase
Class : Class 6
the solution of the equation is 3*3*5*5*5*2*7 which has seven prime factors

Ans 3:

DEVRAJ DOLEY from NPS INTERNATIONAL SCHOOL, Guwahati
Class : Class 8
the answer is 7.

Ans 4:

Mudit garg from La blossoms school, Jalandhar
Class : Class 7

Ans 5:

ARNAV BARANWAL from KPS SCHOOL, bhilai
Class : Class 8
ans is 7

Ans 6:

svayumbhu sharma from jodhamal public school, jammu
Class : Class 9

Ans 7:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
4

Ans 8:

Akshara from NPS, Bengaluru
Class : Class 8
Yes .... The answer is 4. ( 2, 3 ,5 and 7)

Ans 9:

Pranav from Ganges valley school, Hyderabad
Class : Class 8
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

Ans 10:

jayashree easwaran from vibgyor High, Bengaluru
Class : Class 4
isn't the answer "A"

Ans 11:

Pranav from Ganges valley school, Hyderabad
Class : Class 8
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

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Advait nagale from Universal High, Thane
Subject :IMO    Class : Class 3

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Mayank Paul from Saint Edmunds School, Shillong
Subject :IMO    Class : Class 3

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Ankit Kumar Mistry from Kalyani Public School, Kolkata
Subject :IMO    Class : Class 4

Ans 1:

BIR from LOTUS VALLEYINTERNATIONAL SCHOOL, NOIDA
Class : Class 4
10000

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 7
BIR you have written ten thousand instead of one thousand !!!

Ans 3:

Soumya Gupta from Prudence School Ashok Vihar, New Delhi
Class : Class 5
the answer is c

Ans 4:

Nehal from New Horizon Gurukul, Bangalore
Class : Class 6

Ans 5:

Sarthak Shome from Harvest International, Bangalore
Class : Class 5
man the answer is 10 lackhs

Ans 6:

MANDAR PALKAR from KV DRDO, Bengaluru
Class : Class 2
100 tens = 1 thousand

Ans 7:

Sarah Ahmad from st. mary's school, delhi
Class : Class 5
The answer is D- 1 thousand

Ans 8:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
dfd

Ans 9:

Shraddha from Delhi public school, Hyderabad
Class : Class 4
The answer is D

Ans 10:

Sweta from dpsnoida, Noida
Class : Class 4
solutions should be in detail and a little easy

Ans 11:

Amartya Dey from DPS Bangalore East, Bangalore
Class : Class 4
trick question

Ans 12:

Ashwak from Cambridge, Jalandhar
Class : Class 7
The answer is D .

Ans 13:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 6

Ans 14:

Midhuna from ABCD, Banglore
Class : Class 3

Ans 15:

Sarah Ahmad from st. mary's school, delhi
Class : Class 5

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Astha Aswani from Fatima convent school, Kanpur
Subject :IMO    Class : Class 8

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DEVANSHI R SHAH from DIVYAPATH CAMPUS, AHMEDABAD
Subject :IMO    Class : Class 7

Ans 1:

Arshia Mittal from Ryan International School, rohini
Class : Class 9
its more than easy D

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rachana from delhi public school, NACHARAM
Subject :IMO    Class : Class 3

Ans 1:

Anaisha Niranjan from DPS Noida, Noida
Class : Class 3
the answer should 107

Ans 2:

Ritisha from THE LEXICON I SCHOOL , Pune
Class : Class 7
It is NOT out of syllabus . The sulution is that one moon is 18.So,18x18=324.To get the star devide 18 by 3=6.18-6=12

Ans 3:

Raghav from Gems wellington school, Doha
Class : Class 6
it is a little tricky but i solved it.

Ans 4:

Harshith from Cs academy, Erode
Class : Class 3

Ans 5:

princy gigo from Global Indian International School, Kuala Lumpur
Class : Class 4
out of syallabus

Ans 6:

AARAV GUPTA from Khaitan Public School, Ghaziabad
Class : Class 4

Ans 7:

Rajdeep Chatterjee from Techno India Public School, Bolpur
Class : Class 7
IT IS OUT OF SYLLABUS.

Ans 8:

Krishna Nanda from St. Xaviers Co Ed School Bhopal, Bhopal
Class : Class 7
the answer is 108

Ans 9:

Arpit Gupta from Treamis World School, Bengaluru
Class : Class 5
options given seems to be wrong

Ans 10:

AARAV GUPTA from Khaitan Public School, Ghaziabad
Class : Class 4
Out of Syllabus

Ans 11:

Prisha Jora from Adani Public School, Mundra
Class : Class 3
I don't know the answer because IT IS OUT OF SYLLABUS

Ans 12:

Aamogh from Kv, Chennai
Class : Class 3
correct answer should be 33

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Sanskriti Samant from Euroschool Wakad, Pune
Subject :IMO    Class : Class 4

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