A, B, C, and D are four villages, as shown. No road exists now. Govt has alloted money to construct road connecting all four villages. But the money is just sufficient for constructing 22 km of road only. How can the road be constructed connecting the four villages with the available money ?

The roads present between these villages.

Explanation:

The place which is present between these four villages is the place where roads can be constructed with available money so this place is the best location for the construction of road that connect all four villages to each other. Only those roads are constructed which is located between two villages with the available money because the money is not well enough for the construction of very big roads.