Answer:
$1080
Step-by-step explanation:
monthly salary = $810
money spent on rent = 810 × 5/9 = $450
money spent on food = 810 × 1/3 = $270
money saved in a month = monthly salary - (money spent on [rent + food])
= 810 - (450 + 270)
= 810 - 720 = $90
money saved in a year = money saved in a year × 12
90 × 12 = $1080
OR
monthly salary = $810
yearly salary = 810 × 12 = $9720
money spent on rent = 9720 × 5/9 = $5400
money spent on food = 9720 × 1/3 = $3240
money saved in one year =
yearly salary - (money spent on [rent + food] in an year )
= 9720 - (5400 + 3240)
= 9720 - 8640 = $1080
