Subject :IMO Class : Class 3
Ans 1:
Class : Class 3
There is a mistake.9 4 5 1 2=21. The 9 should have been 8.Then only 20 will come.
Ans 4:
Class : Class 6
Answer is 20 option b ,but there is a mistake in the solution, but final answer is c.
Ans 14:
Class : Class 6
Sof really doesn't know addition true, but i am sure it is just a printing mistake