Answer the following questions based on the following graph given below. The graph represents the annual production of the two types of vehicles, type P and type Q, (in thousands) from the year 1985 to 1990
In which of the following years was the percentage increase in production of Q type vehicles exactly 30 over the previous year?
No. of vehicles (in Thousands) in 1987 = 100
No. of vehicles (in Thousands) in 1988 = 130;