Question

Total cost of painting a closed cubical tank at rate of rupees 5 per metre square is rs 3000 . how many litres of volume can it hold

Answer 1

☆Hello friend☆

meter per square show that area of 4 walls have been taken out,

Rs 5 × Area m^2 = Rs 3000

Area m^2 = Rs 3000/ Rs 5= 600m^2

Area of 4 walls = 4 side ^2

600 m^2/4 = side^2

150m^2 = side^2

$\sqrt{150 {m}^{2} } = side$

12.3 m = side

Volume= l^3
V = (12.3m)^3
= 1860.9m^3

1m^3 = 1000 litres
1860.9m^3 = 1860.9 × 1000 = 1860900litres

Hope it helps☺!