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The simplification of `3.overline(36)` - `2.overline(05)` + `1.overline(33)`  equals :


Options:
A .  2.60
B .  2.64
C .  `2.overline(61)`
D .  `2.overline(64)`
Answer: Option D

`3.overline(36)` - `2overline(05)` + `1.overline(33)` =  [( 3 + `0.overline(36)`) + (1 + `0.overline(33)`)] - (2 + `0.overline(05)`)

= `[ 4 + (36/99 +33/99)]` -` [2 +5/99]`  = 2 + `(36/99 + 33/99 - 5/99)`

 = 2 + `64/99` = `2.overline(64)`




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