Question

The capacity of a "28 S type" concrete mixer is 0.8 m³. For  mixing one cubic meter of concrete, the quantity of cement required is 5.5 bags. In order to avoid fractional usage of cement bags, the volume of concrete (in m³) to be mixed per batch will be
1. 0.79
2. 0.55
3. 0.73
4. 0.44

Answer 1

Correct Answer - Option 3 : 0.73

As 5.5 bags of cement can produce 1 m³ of concrete.

For 0.8 m³ of concrete, bags required are 5.5 x 0.8 =4.4 bags

Hence 4 bags are required.

The maximum number of full bags will be 4. So 4 bags can produce \(\frac{4}{{4.4}}*0.8 = 0.73\) m³ of concrete.