Water in the tank will last for 1 day.
Explanation:
Step 1:
Given diameter of tank = 10m, so radius = 5m,
height of tank = 7m
Number of people in society = 5500, number of L per day per person = 100L
Step 2:
Calculate total liters of water required
⇒ Total L required in the society = 5500 × 100 = 550,000 L
Step 3:
Calculate volume of water in tank in 1 day
⇒ Volume of cylinder = πr²h = 22/7 × 5 × 5 × 7
⇒ Volume = 22 × 25 = 550 m³
⇒ Volume = 550,000 L (since 1 m³ = 1000 L)
Step 4:
Calculate number of days water will last
⇒Number of days = Total water required/Volume of tank
= 550,000/550,000
⇒ Number of days = 1