![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Find the product by rearrangement:$20\ \times\ 1975\ \times 5$
Given: $20\ \times\ 1975\ \times 5$
To find: Here we have to find the value of the given expression $20\ \times\ 1975\ \times 5$ by rearranging.
Solution:
Rearrangement is done to make calculations easy.
In this case it is difficult to calculate the product of 20 and 1975 and then again multiply that value with 5 to get the final answer.
$20\ \times\ 1975\ \times 5$
Now, we know that product of 20 and 5 is easy to calculate. So, rearranging the digits:
$=\ 1975\ \times\ (20\ \times\ 5)$
$=\ 1975\ \times \ 100$
It is easier to calculate the final value now:
$=\ \mathbf{197500}$
So, the value of the given expression is 197500.
Advertisements