28.
A question and two statements are given. Decide which of the statement(s) is/are sufficient to answer the question. Question: Nitara has 20 colored pencils of four different colours. How many black pencils does she have? Statements: 1. It has 5 red colored pencils. 2. She has 4 blue colored pencils. 3. The number of green pencils is twice that of blue pencils.