Question

3. A concrete slab weighing 48 kg has a
volume of 0.016 m? What is the density of
concrete? [Ans.: 3000 kg/m]​

Answer 1

Given:-

• Mass of slab (m) = 48kg

• Volume (v) = 0.0016m³

To Find:-

• Density of concrete (D).

Solution:-

By using this formula

→ Density = Mass/Volume

Substitute the value we get

→ Density = 48/0.016

→ Density = 3000kg/m³

∴ The density of the concrete is 3000kg/m³

Answer 2

Answer:

x:12::12:7

product of extremes=product of means

x*7=12*12

7x=144

x=144/7

x=20.57

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