Question

plz give me answer of this question ​

Answer 1

Answer:

I think the answer is 250

Answer 2

Step-by-step explanation:

let cp =x

l =10%

sp = cp(1-l)

= x (1-10%)

= 0.9x

cp1 = cp(1-20%)

= 0.8x

sp1 = sp+55 = 0.9x+55

p = 40%

sp1 =cp1(1+40%) = 1.4cp1 = 1.4×0.8x = 1.12x

1.12x = 0.9x+55

1.12x - 0.9x =55

0.22x=55

x=55/0.22 = 250

cp = 250