This article provides some of the most important questions for WBJEE examinations. These questions are also helpful for other engineering entrance examinations as well. Find important questions for ...

Permutation and Combination plays a very important role in both phases of Joint Entrance Examination (JEE) i.e. JEE Main and JEE Advanced. About 2-3 questions are always being asked from this chapter ...

Q1. There are six trains running between Delhi and Mumbai. In how many ways can a man go from Delhi to Mumbai and return by a different train?

Today we’ll discuss about Permutation and Combination. This topic is can fetch you marks easily but you need to know the right concepts and types of questions to practice. A combination is a grouping ...

Number of ways of selecting 3 consonants out of 7 = 7C3 Number of ways of selecting 2 vowels out of 4 = 4C2 Number of ways of selecting 3 consonants out of 7 and 2 vowels out of 4 = 7C3 x 4C2 ...

In first part of this series, we discussed about the importance of Permutation and Combination and about Permutation topic. In this part, we are going to discuss about Combination. Combinations are ...

Hello, wrong number At the heart of machine learning are patterns, and patterns are all about counting, so it's important to make sure we are counting the correct items in the correct way.