Question

Convert the unit
1 light yrs into m
1 quintal into kg
1 mm into sec

Answer 1

1 light year = 365×24×3600×3×10⁸ m = 9.46×10¹⁵ m
1 quintal = 100 kg
1mm = 0.01 m

Note: 1mm is a length. It can't be converted to second