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Subject :IMO    Class : Class 3

How many 1000's, 100's, 10's and 1's should be added to give largest four digit number?

A 9, 9, 9, 9
B 1, 0, 0, 0
C 9, 0, 9, 9
D 1, 1, 1, 1


CORRECT IS a

Ans 1:

Class : Class 5

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