Toby is filling his swimming pool for the summer. The pool normally takes 50 hours to fill. He knows his hose runs at 100 gallons per hour. Water costs 1 cent for 10 gallons. How many dollars does it cost to fill the pool?
Тоби барои тобистон ҳавзашро пур мекунад. Ҳавз одатан 50 соат вақт мегирад, то пур шавад. Вай медонад, ки шланги ӯ бо суръати 100 галлон дар як соат кор мекунад. Об 1 сент барои 10 галлон арзиш дорад. Чанд доллар барои пур кардани ҳавз лозим аст?
How many gallons does the pool hold? ** The pool holds 5000 gallons of water because 50 x 100 = <<50*100=5000>>5000
How much does a gallon cost? ** Every gallon costs $.001 because $.01/10 = $<<.01/10=.001>>.001
How much does it cost to fill the pool? ** It costs $5 to fill the pool because 5000 x $.001 = $<<5000*.001=5>>5
#### 5
How many gallons does the pool hold? ** The pool holds 5000 gallons of water because 50 x 100 = <<50*100=5000>>5000  
How much does a gallon cost? ** Every gallon costs $.001 because $.01/10 = $<<.01/10=.001>>.001  
How much does it cost to fill the pool? ** It costs $5 to fill the pool because 5000 x $.001 = $<<5000*.001=5>>5  
#### 5