Study the following information carefully and answer the questions given below.

The bar graph given below shows the average of the number of Greenboard markers and Whiteboard markers sold by five different sellers L, M, N, O and P and difference between the number of (Greenboard markers – whiteboard markers)  sold by these five different sellers.

The second Bar graph given below shows the price (in Rs.) at which each greenboard markers and each whiteboard markers, were sold by given five sellers.