Question

a locality in Delhi having a population of 1200 requires 150Lwater per head per day. It has a big tank measuring 30m × 25m × 10m. For how many days will the water of this tank last? solve plzzzz

Answer 1

volume of water tank =30x25x10
=7500m^3
=7500x1000
water =7500000 liter
1200people required=180000 liter/day
days will water of this tank last
=7500000÷ 180000
= 4days(approx.)

Answer 2

Answer:

41 days

Step-by-step explanation:

One person use water in 1 day = 150 liters

1200 persons use water in 1 day=$150 \times 1200=180000 L$

Length of tank= 30 m

Breadth of tank = 25 m

Height of tank = 10 m

Volume of tank = $Length \times Breadth \times Height$

Volume of tank = $30 \times 25 \times 10$

Volume of tank = $7500m^3$

1 cubic m = 1000 L

7500 cubic m = $7500 \times 1000=7500000 L$

Amount of water last for days = $\frac{7500000}{180000}$

Amount of water last for days = $41.66$

Hence the water of this tank last for 41 days