John's camera broke so he decided to rent one for 4 weeks.  It was a $5000 camera and the rental fee was 10% of the value per week.  His friend who was there when it broke agreed to pay 40% of the rental fee.  How much did John pay?
Камераи Ҷон шикаст, бинобар ин ӯ қарор дод, ки барои 4 ҳафта яктои онро иҷора гирад. Ин камера 5000 доллар буд ва ҳаққи иҷора 10% аз арзиши он дар як ҳафта буд. Дӯсти ӯ, ки дар вақти шикастани камера он ҷо буд, розӣ шуд, ки 40% аз ҳаққи иҷораро пардохт кунад. Ҷон чанд пул пардохт кард?
How much is the rental fee? ** The rental fee is 5000*.1=$<<5000*.1=500>>500 per week
How much did John pay in total? ** So it cost 500*4=$<<500*4=2000>>2000
How much did John's friend pay? ** His friend pays 2000*.4=$<<2000*.4=800>>800
How much did John pay? ** So he pays 2000-800=$<<2000-800=1200>>1200
#### 1200
How much is the rental fee? ** The rental fee is 5000*.1=$<<5000*.1=500>>500 per week  
How much did John pay in total? ** So it cost 500*4=$<<500*4=2000>>2000  
How much did John's friend pay? ** His friend pays 2000*.4=$<<2000*.4=800>>800  
How much did John pay? ** So he pays 2000-800=$<<2000-800=1200>>1200  
#### 1200