The bar graph given below shows the sales of books (in thousands) from six branches (B1, B2, B3, B4, B5, and B6) of a publishing company during 2011 and 2012
What is the average sale of all the branches (in thousands) for the year 2011?
সমাধান
সঠিক উত্তর: Option B
Total sales in 2011=80+75+95+85+75+70=480 thousand
average sales=480/6=80