List of top Quantitative Ability and Data Interpretation Questions on permutations and combinations asked in SNAP

How many words each of two vowels and three consonants can be formed from the letters of the word "UNIVERSAL"?

A number lock consists of 3 rings each marked with 10 different numbers. In how many cases the lock cannot be opened?

There are 10 stations on a railway line. The number of different journey tickets that are required by the authorities is

Four stacks containing equal number of chips are to be made from 11 orange, 9 white, 13 black and 7 yellow chips. If all of these chips are used and each stack contains at least one chip of each colour, what is the maximum number of white chips in any one stack?