$K_f$ for water =$1.86$kg/mol
$K_b$ for water =$0.512$kg/mol
$\Delta T_b=K_b\times \large\frac{W_B}{M_B}\times \frac{1000}{W_A}$
$\Rightarrow 0.512\times \large\frac{12.4}{62}\times \frac{1000}{100}$
$\Rightarrow 1.024K$
Since water boils at $100^{\large\circ}$C,so a solution containing ethylene glycol will boil at $101.04^{\large\circ}C$ so it is advisable to keep this substance in car radiator during summer.