EXERCISE 7.1
Jharkhand Board Mathematics Solutions for EXERCISE 7.1
Simple step-by-step solutions to EXERCISE 7.1 questions of Permutations and Combinations from MATHEMATICS Textbook for Class XI. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISE 7.1 with Hints & Solutions
How many -digit numbers can be formed from the digits and assuming that repetition of the digits is allowed?

How many -digit numbers can be formed from the digits and assuming that repetition of the digits is not allowed?

How many -digit even numbers can be formed from the digits if the digits can be repeated?

How many -letter codes can be formed using the first letters of the English alphabet, if no letter can be repeated?

How many -digit telephone numbers can be constructed using the digits to if each number starts with and no digit appears more than once?

A coin is tossed times and the outcomes are recorded. How many possible outcomes are there?

Given flags of different colours, how many different signals can be generated if each signal requires the use of flags, one below the other?
