math
posted by ASDFG .
chandni purchased some parrots.20%flew away and 5% died.of the remaining 45% were sold.now 33 parrot remain.how many parrot Chandni purchased.

I will assume that 20% of the original, and 5% of the original.
let the number he had be n
so now he has 75% of x left or 3x/4
of those he sold 45%, leaving him with 55% of the remaining
(55/100)(3x/4) = 33
times 400
165x = 13200
x = 13200/165 = 80