Question

the cost of an article goes down every year by 20% of its previous value find find its its original cost if the cost of it is after 2 years is rupees 19200

Answer 1

18900 answer of this question

Answer 2

Hello friend!
Heres ur answer !
19200= x (1-20/100)2
19200 =x(80/100)2
19200 = x (4/5)2
19200= x * 16/25
19200*25/16 = x
X = 30000