- 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
Choose the correct answer:
$ (698 \times 7)+(72 \times 8)= $
a. 5563
c. 5462
b. 4526
d. None of these
Given:
\( (698 \times 7)+(72 \times 8)= \).
To do:
We have to simplify the given expression.
Solution:
$(698 \times 7)+(72 \times 8)=(700-2)\times7+72\times(10-2)$
$=700\times7-2\times7+72\times10-72\times2$
$=4900-14+720-144$
$=(4900+720)-(14+144)$
$=5620-158$ $=5462 $
Therefore,
$(698 \times 7)+(72 \times 8)=5462$.
Advertisements