Asmi Raniga
from
Indian School Ghubra, Muscat
Subject :IMO Class : Class 4
Ans 2:
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kushagra chaturvedi
from
Podar Internation School Chinchwad, Pune
Class : Class 5
A is the answer because if you interchange the 2nd and the 3rd digit, you will get the correct answer, but you also need to interchange option D.
Ans 3:
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Arihaan Adhikari
from
Modern Delhi International School, Sector 87, Faridabad
Class : Class 7
Ans should be D as the 3rd digit is 1 which is the smallest digit odd number.