Bob buys nose spray.  He buys 10 of them for a "buy one get one free" promotion.  They each cost $3.  How much does he pay?
Боб спрейи бинӣ мехарад. Вай 10 дона аз онҳо барои таблиғи "якто харид, дуюмиро ройгон гир" мехарад. Ҳар кадомашон 3 доллар арзиш дорад. Вай чанд пул пардохт мекунад?
How many did he get for free? ** He got 10/2=<<10/2=5>>5 paid
How much did he pay? ** That means he paid 5*3=$<<5*3=15>>15
#### 15
How many did he get for free? ** Ӯ 10/2=<<10/2=5>>5 ройгон гирифт  
How much did he pay? ** Ин маънои онро дорад, ки ӯ 5*3=$<<5*3=15>>15 пардохт кард  
#### 15