question_answer

Direction: The table given here shows production of five types of cars by a company in the year 1989 to 1994. Study the table and answer the questions.
Production of Cars by A Company
Year Type	1989	1990	1991	1992	1993	1994	Total
P	8	20	16	17	21	6	88
Q	16	10	14	12	12	14	78
R	21	17	16	15	13	8	90
S	4	6	10	16	20	31	87
T	25	18	19	30	14	27	133
Total	74	71	75	90	80	86	476

The per cent increased in total production of all types of cars in 1992 to that in 1991 was

A) 15                                

B) 20

C) 25                                

D) 30