Dr. Jones earns $6,000 a month. His house rental is $640 each month; his monthly food expense is $380; his electric and water bill costs 1/4 of what he makes, and his insurances cost 1/5 of what he makes. How much money does he have left after paying those four bills?
Dr. Jones pays $6000 / 4 =$ <T>divide(6000, 4)=1500.0 for his electric and water bill.
He pays $6000 / 5 = $<T>divide(6000, 5)=1200.0 for his insurances.
The total amount he pays for the bills and insurances is $1500 + $1200 = $<T>add(1500, 1200)=2700
The remaining money from his earning after paying off the bills and insurance is $6000 - $2700 = $<T>subtract(6000, 2700)=3300
The total amount he needs to pay for the rent and food expenses is $640 + $380 = $<T>add(640, 380)=1020
So, Dr. Jones has $3300 - $1020 = $<T>subtract(3300, 1020)=2280 left
