Question

George has a small coin collection.  He has collected 

16 gold coins,   28 silver coins,   32 copper coins,  and 4 bronze coins.  At a flea market, George sells  15% of his coins.  Find the number of coins he sold.

Answer 1

16+28+32+4=80
15% out of 80
15/100 * 80 = 12 coins sold

Answer 2

Total number of coin that George has
16 + 28 + 32 + 4 = 80 coins
total number of coins sold by George
= 15% of 80
= 15/100 X 80
= 12 coins (ans)