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Questions  

If   denotes the greatest integer function, then (2+1)6 is equal

a
199
b
198
c
197
d
196

detailed solution

Correct option is C

Let (2+1)6=R+f where Ris an integer and 0≤f<1.Note that  R=(2+1)6Also, 0<2−1<1⇒0

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