International Maths Olympiad Forum By SOF Olympiad Trainer - Page 352
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Parth Kadam from Pawar Public School , Nanded City, Pune
Subject :IMO    Class : Class 7

Ans 1:

JIYA from SCHOOL, MUMBAI
Class : Class 7
STEP 3 AS THEY ADDED 3 TO 72/7 WITHOUT MAKING THE DENOMINATORS EQUAL WHICH IS NECESSARY IN FRACTION ADDITIONS

Ans 2:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
STEP-3 IS WRONG HERE 3 IS ADDED TO 72 THEN UPON 7 IS DONE WHICH IS WRONG WE HAVE TO TAKE LCM CORRECTLY BY MAKING DENOMINATORS EQUAL.

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Saumya Namdeo from Jai Bharat English Medium School, Janjgir
Subject :IMO    Class : Class 4

Ans 1:

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

Ans 2:

Mayukh chatterjee from Somerville School Noida, Noida
Class : Class 5
b

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Siddarth G Komarala from The Mothers International School, New Delhi
Subject :IMO    Class : Class 6

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eknoor from Seth Anandram Jaipuria School, Ghaziabad
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is option A. 


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Vanita from Kaanger Valley Academy , Raipur
Subject :IMO    Class : Class 8

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Pratham Dave from GNS, Bangalore
Subject :IMO    Class : Class 5

Ans 1:

Rishabh Jha from sandipani, Nagpur
Class : Class 7
A is Answer

Ans 2:

Rishabh Jha from sandipani, Nagpur
Class : Class 7
A is Answer

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Pratham Dave from GNS, Bangalore
Subject :IMO    Class : Class 5

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Subject :IMO    Class : Class 7

Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
Answer should be 1/2.

Ans 2:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7

Ans 3:

Rudra modi from Krishna international public school, Patan
Class : Class 7
Answer should be 1/2

Ans 4:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
1/2

Ans 5:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8
Even I think the answer should be 1/2

Ans 6:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
The answer should be B since getting at least one tail has a probability of 2/4 and simplifying it we will get 1/2

Ans 7:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
answer is 1/2

Ans 8:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 8
The answer must be 1/2in two coins there are total 4 possibilities of head n tailout of which 2 possibilities are of tail hence it'll be 2/4 which is equal to 1/2

Ans 9:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
YES,ANSWER IS 1/2

Ans 10:

Aniket kumar from kendriya vidyalaya, Delhi
Class : Class 8

Ans 11:

Ambati Daivik from Kendriya Vidyalaya, Dharwad
Class : Class 10

Ans 12:

Darsh Jain from The Vedansh International School, Indore
Class : Class 7
the answer is 3/4 because there are 4 possibilities - heads

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Mohnish from Mm, m
Subject :IMO    Class : Class 7

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Gunnit Kant from DPS, Nerul, Navi Mumbai
Subject :IMO    Class : Class 4

Ans 1:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 5
B

Ans 2:

Hareesh venkatesh from Smt Ramkumari Fomra Vivekananda Vidyalaya, Chennai
Class : Class 5
B is the answer

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