Exercise 2.2 | Q 15.2 | Page 47

#### QUESTION

There are two book shops own by Suresh and Ganesh. Their sales ( in Rupees) for books in three subject - Physics, Chemistry and Mathematics for two months, July and August 2017 are given by two matrices A and B. July sales ( in Rupees) :

Physics Chemistry Mathematics

A =

August Sales (in Rupees :

B =

If both book shops get 10% profit in the month of August 2017, find the profit for each book seller in each subject in that month.

#### SOLUTION

Both book shops got 10% profit in the month of August 2017.

For Suresh :

Profit for Physics books =

Profit for Chemistry books =

Profit for Mathematics books =

For Ganesh :

Profit for Physics books =

Profit for Chemistry books =

Profit for Mathematics books =