Answer:
x=16
Step-by-step explanation:
Let C.P. of each article be Re. 1 C.P. of x articles = Rs. x
S.P. of x articles = Rs. 20
Profit = Rs. (20 - x)
∴20−xx×100=25
⇒ 2000−100x=25x
125x=2000
⇒ x=16
Answer:
The answer is 52.33333333
This is a perfect square trinomial. All of these special cases take this form which you can identify: a²+2ab+b².
x^2 - 8x +16 equals (x-4)²
answer: (x-4)²
