Let the cp be rs x. if a man gains 20% profit by selling an article for rs 816. find cp​

Let, the c.p be x.

Given,

profit % = 20%

S.P = rs 816

c.p = x

We know,

profit = p% of c.p

         = * x

         =

now,

   C.p = profit + s.p.

        x = + 816

        x =

       5x = x + 4080

       5x-x = 4080

       4x = 4080

         x =

         x = Rs 1080

Hence, the c.p is Rs. 1080

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

$30.32

step-by-step explanation:

65.00*.12=2.80

65.00-2.80=57.20

57.20*1.06=60.632

60.632/2=30.316