Question

a) Ramesh was given an increment of 20% on his salary. If his new salary is Rs 25500, what was his salaly before the increment? b) A number is first increased by 10% and then reduced by 5%. Find the net increase or decrease percent.​

Answer 1

Step-by-step explanation:

Let the salary before increment = x

increment = 20 % of x 

=> 20 /100 × x 

=> x/5

=> given that if his new salary is  rs. 30600 

=> the new salary is also = x + x/5( the increment in the salary )

=> 56x = 30600

=> 6 x = 30600× 5

=> x = 30600×65

x = 25,500