In cold climate, the water in a radiator of a car gets frozen...

In cold climate, the water in a radiator of a car gets frozen causing damage to the radiator. Ethylene glycol is used as an antifreezing agent. The amount of ethylene glycol that should be added to 5 kg of water to prevent it from freezing at $-7^{{}^{{}^{\circ}}} \mathrm{C}$ is (Given: $K_f$ for water $=1.86 \mathrm{~K} \mathrm{~mol}^{-1} \mathrm{~kg}$; Molar mass of ethylene glycol $=62 \mathrm{~g} \mathrm{~mol}^{-1}$ )