Question

If 4 families each use 4 buckets of 16 m${}^3$ water daily from a 4096 m${}^3$ tank, then the water will last for .

• A. 16 days
• B. 21 days
• C. 14 days

Answer 1

The correct option is A 16 days

A family uses 4 buckets of water,
Volume of each bucket = 16 m${}^3$.
$\therefore$ the total amount of water used by each family = 64 m${}^3$.
So, 4 families will consume 256 m${}^3$of water every day.
Capacity of tank = 4096 m${}^3$.
Therefore, number of days the water will last = $\frac{4096}{256}=16days$ .