RRB NTPC · Question 31
Study the graph given below and answer the following questions. One of the graphs below shows the amount invested by the company to purchase unprocessed material in a few years (in lakhs of rupees) and the other shows the values (in lakhs) of processed goods sold by the company in a few years.


What was the difference between the average amount invested in unprocessed material during the given period and the average price of sale of processed goods during this period? A. 62.5 lakh rupees B. 68.5 lakh rupees C. 71.5 lakh rupees D. 77.5 lakh rupees
Show answer & explanation
Answer: (A) D
Explanation
Average investment = (120 + 225 + 375 + 330 + 525 + 420)/6 = 1,995/6 = 332.5 lakh. Average sales = (200 + 300 + 500 + 400 + 600 + 460)/6 = 2,460/6 = 410 lakh. Difference = 77.5 lakh.