Going by the options (a) 3 hours 14 minutes =3×60+14=180+14=194 minutes (b) 2kg30g=2000g+30g=2030g (c) 3 litres 80 millilitre =3000+80=3080ml≠380ml (d) Area of square =102=100cm2 Area of rectangle =100×0.01×100=100cm2 Hence, option (c) is not correct