VTMO 2021 — Grade 7 — vtmo Question 8

Cars $A$ and $B$ start together from $HCMC$ toward Vung Tau and stop $50 \,\mathrm{km}$ from $HCMC$. Their total driving times are $3 h$ and $3 h = 20$ min. $B$ reaches the stop $8$ min after $A$. Find the full distance.