International Maths Olympiad Forum By SOF Olympiad Trainer - Page 736
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abhimanyu from KVA, Raipur, Raipur
Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

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

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Pushti Shah from mount carmel, ahmedabad
Subject :IMO    Class : Class 5

Ans 1:

saranyeswari reddy from srichaitanya, sullurpeta
Class : Class 9
first divide 160 by 40=4 so 70 multiply by 40 = 280

Ans 2:

Neelabh Mishra from Vishwa Bharati Public School, Noida, Noida
Class : Class 5
280 litre because 40 * 4 = 160 so 70 *4 is 280 litre

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Swarnavo from Reso, Kota
Subject :IMO    Class : Class 5

Ans 1:

Kaven Singh from BHIS, Malad West, Mumbai
Class : Class 9
The ans is b.1197

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kishoremvr from BVM Global Bollineni Hill side, Chennai
Subject :IMO    Class : Class 6

Ans 1:

X. Benedict Raymond from holy family convent, Chennai
Class : Class 7
Answer is option D

Ans 2:

Arushi from Indira National School, Pune
Class : Class 9
Plus sign means is smaller than so a is smaller than b ; b is smaller than c. That means c is smaller than a. = means is smaller than so c = a. answer is D

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JYOTI RAUT from ,
Subject :IMO    Class : Class 5

Ans 1:

Kaven Singh from BHIS, Malad West, Mumbai
Class : Class 9
The ans is C

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Varsha Chhaajed from ,
Subject :IMO    Class : Class 6

Ans 1:

ankana pari from Bk T P P Prabi Sengupta High School, Suri Birbhum
Class : Class 6
The formula is (L.C.M.*H .C.F.)/1st number.

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Sri Mitra from GIIS, Singapore
Subject :IMO    Class : Class 4

Ans 1:

Arundhati Sarkar from DPS SECTOR 45 , Gurgaon
Class : Class 4
ans a-80. From 1-9 there are 9 digits . so we are left with 151-9=142 digits. Note that from 10 onwards all numbers are of 2 digits. So there are 142/2=71 numbers to have 142 digits. Therefore there are 9+71=80 numbers.

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from Mahadevi Birla Sishu Vihar, Kolkata
Subject :IMO    Class : Class 4

Ans 1:

AYUSMAN NAYAK from DAV PS, BHUBANESWAR
Class : Class 7
The no is 31.31x5=155 209=364.Hence neither statement 1 nor statement 2 is correct

Ans 2:

Shivam from ZSFC, ahemdabad
Class : Class 4
anwer=option c

Ans 3:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
Answer is C

Ans 4:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
You’re are supposed to multiply the number by 3 hence the answer is C

Ans 5:

Anjala Ambade from ,
Class : Class 4
ans-d

Ans 6:

Abhijnan Barman from Maharishi Vidya Mandir Senior Secondary School, Guwahati
Class : Class 4

Ans 7:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
(364-209) divided by 5=3131*3=93So, the answer is C.

Ans 8:

Soham Mohanty from DAV, Bhubaneswar
Class : Class 6
Ans. 1Soham Mohantyclass-4fAnswer:c

Ans 9:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Answer should only and only be D

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JYOTI RAUT from ,
Subject :IMO    Class : Class 5

Ans 1:

Kaven Singh from BHIS, Malad West, Mumbai
Class : Class 9
The ans is C 48

Ans 2:

ABHAY KUMAR from DPS RANCHI, Ranchi
Class : Class 5
C

Ans 3:

Soumyadip Sil from Kamal Kumari Devi Model School, Raghunathganj
Class : Class 7
The answer is c

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ABHAY KUMAR from DPS RANCHI, Ranchi
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

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

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