A merchant bought 30 dozen pairs of gloves. How many individual gloves did the merchant buy?

A. 300

B. 420

C. 720

D. 360

In this question there are several information's of immense importance already given.

The number of pair of gloves that the merchant bought = 30 dozens

1 dozen = 12 gloves

Also

1 pair = 2 gloves

Then

The total numberof individual gloves bought

by the merchant = 30 * 12 * 2

= 720

The correct option among all the options given in the question is option "C" and it can be checked via the above solution.