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Answer:

Height of Vicky is 1.61 m

Height of bittu is 162 cm

Height of Rohit is 1600 mm

find everyone height in cm

Vicky convert meter into cm

1.61*100=161 cm

then bittu is already in cm which is 162 cm

Rohit is in mm converting it in cm by dividing by 10

1600/10 = 10 = 160 cm

thus, the tallest in all of them is bittu as his height is 162 cm .