Bihar Police Constable Model Paper 7

CONCEPT:

Carat:

• A metric "carat" is defined as 200 milligrams.
• The modern metric carat, equal to 0.2 grams, was adopted by the United States in 1913 and other countries soon after.
• Today, a carat weighs exactly the same in every corner of the world.

EXPLANATION:

• From above it is clear that, a carat is a unit of mass. Therefore option 4 is correct.