Question

Diameter of a water tank is 1.4 m. Tiles have to ï¬x in its bottom. If labour charge to ï¬x the tiles is Rs.60 per sq m, then ï¬nd the total labour charge to ï¬x the tiles.

Answer 1

Answer:

Cost charged by the labour is 92.4 Rs.

Step-by-step explanation:

In the question,

Diameter of water tank = 1.4 m

Charge by the labour = Rs. 60/m²

Now,

Area of the base of the tank is given by,

A = πr²

So,

$A=\frac{22}{7}(\frac{1.4}{2})^{2}A=22\times 0.1\times 0.7 \\A=1.54\ m^{2}$

Now, The cost of the labour will be,

Cost = Total Area x Area of the base of the tank.

So,

$Cost =1.54\times 60\\Cost=92.4\ Rs.$

Therefore, the cost by the labour is 92.4 Rs.