Question

Vihan's salary increased by 10% on
promotion. Find his previous salary if his
new salary is 77,000? ​

Answer 1

Answer:

previous salary = 70,000

Step-by-step explanation:

let previous salary be x

increase in salary = 10% of x = (10/100)x

new salary = previous salary+ increase in salary

=> new salary = x + (x/10)

=> 77000 = (10x+x)/10

=> ( 77000)(10) = 11x

=> x = 770000 ÷ 11

=> x = 70000