Question

Q. 1. A man got a 10% increase in his
salary. If his new salary is ₹1.54.000, find his
original salary​

Answer 1

Given ;

Increase percentage =10 percent

New salary = 154000

let the original salary be x

Now

new salary =original salary + Increase in salary

154000= x + Increase in salary

154000 - x = Increase in salary

Increase in salary = 154000-x

Now ;

percentage increase = Increase in / original salary ×100

10=154000-x /x =100

10x = (154000-x)×100

10x /100= 154000-x

x/10=154000

x/10+x 154000

x(1/10+1)=154000

x= (1+10/10) =154000

x= (11/10)= 154000

x= 1540000×10/11

Therefore;

x=140000

Original salary is 140000.

Answer 2

Answer:

Let the salary before the increment be Rs.100. Then,

Increase in salary =Rs.10

∴ Increased salary =Rs.(100+10)=Rs.110

If increased salary is Rs. 110, original salary =Rs.100

If increased salary is Rs. 154000, original salary =Rs.(

110

100

×154000)=Rs.140000

Hence, the salary of the man before increment was Rs.140000.