IPMAT Rohtak (QA) PYQs

There are 12 copies of Beetles CDs, 7 copies of Pink Floyd CDs, 3 different CDs of Michael Jackson, and 2 different CDs of Madonna. Find the number of ways in which one or more than one CD can be selected?

Please calculate in how many ways can a set of five players be formed out of a total of ten players such that two particular players should be involved in each set?

Please calculate in how many ways can a platoon of sixteen soldiers be chosen out of a total of twenty soldiers for a surgical strike?