Question

At a coin collector's shop, a rare US coin was recently marked up 50% and is now selling for $210.00. How much was the coin before the mark-up?

Answer 1

Answer:

$140 is the answer

Answer 2

Answer:

$140$ $

Step-by-step explanation:

Let the original price of US coin be "X"

The mark up in the price of US coin $= 50$ %

Price of US coin after mark up

$= X + ( \frac{50}{100} X)\\= 1.5 X$

$1.5 X = 210\\X = \frac{210}{1.5} \\= 140$$