The operating costs of a company are given below.

The total money spent on operations in 2016 is ₹ 120 lakhs and the total money spent in 2017 is ₹ 150 lakhs.
By how much was the salary in 2017 higher than that of 2016?

A

₹ 5 lakhs

B

₹ 10 lakhs

C

₹ 22.5 lakhs

D

₹ 20 lakhs