Question

S.P. -₹ 21 and gain = 5%, find C.P.​

Answer 1

Step-by-step explanation:

C.P is rupees 20

pls like.

Answer 2

Step-by-step explanation:

S.P. = Rs.21

Gain = 5%

Let C.P. be x.

Therefore, x + x/100 * 5 = 21

= x + x/20 = 21

= 20x + x/20 = 21

= 21x/20 = 21

= x =  21*20/21

= x = 20.

Therefore x(C.P.) is Rs.20.

Here is your answer. Hope it helps!