What is the respective ratio between the number of Academic books published by Company A and the number of Non-Academic books published by company D ?

The number of Non-Academic books published by company C is what percent of the total number of Non-Academic books published by company B and D together?

The number of Academic books published by Company E is what percent less than the number of Non-Academic books published by the same company ?

The number of Nexus mobile phones sold by each store increased by 15% from 2008 to 2009, and the number of Apple mobile phones sold by each store increased by 10% from 2008 to 2009, what was the total number of Nexus and Apple mobile phones sold by stores B and E together in 2009?

If the price of each BlackBerry mobile is INR 22,000/-price of each Nexus mobile is INR 25,000/-and the price of each Apple mobile is INR 28,000/- by what percent are the total sales of store F more than the total sales of store D ? (rounded off to nearest integer)

What is the difference between number of mobile phones of all three brands sold by stores F and B ?