Linear Equation In One Variable

Anushka and Aarushi are friends. They have equal amount of money
in their pockets. Anushka gave 1/3 of her money to Aarushi as her
birthday gift. Then Aarushi gave a party at a restaurant and cleared
the bill by paying half of the total money with her. If the remaining
money in Aarushi’s pocket is Rs.1600, find the sum gifted by
Anushka.