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Doubt in D.I. question
by Ray s - Wednesday, 18 June 2014, 09:08 PM
  First all of sorry if i broke any forum rule as this is my 1st time so pardon for that TGTEAM!!

So about the question this is the question I was trying to solve from


If the average price of a book on Mechnical engineering is Rs. 40, what is the total amount received from the sale of such books (in Rs. thousands) ?
a. 37.6
b. 67.6
c. 57.6
d. 47.6

In how many categories of books shown in diagrams II, III and IV were more than 3000 books sold ?
a. 2
b. 3
c. 4
d. 5

Just wanted to clarify If we can solve these questions using above diagram or do we need any extra data for that..

If we can solve it please give me some hints.

Thank you