Question

Question 7
34 labourers are required for cleaning a 10.2 km long road. Then how many labourers are required for cleaning 7.5 km long road ?

Answer 1

Answer:

25 laboures will required to clean 7.5 km road

Given:-

• laboures required for cleaning 10.2km log road is 34

To find:-

• how many laboures are required for cleaning 7.5km long road

Solution:-

here,

we can represent the information in a table form and solve it

let the number of laboures required to complte the work be X

$road \: lenght \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: 10.2 \: \: \: \: \: \: \: \: \: \: \: \: \: \: 7.5 \\ number \: of \: labour \: \: \: \: \: \: \: 34 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: x \\ \\ \: we \: know \\ less \: quantity \: will \: \: cost \: less\\hence \: we \: will \: cross \: multiply \: this \\ here \\ 10.2 \times x = 7.5 \times 34 \\ \\ x = \frac{7.5 \times 34}{10.2} \\ \\ x = 25$