Question 1052121
car A
speed{{{r}}} 
time {{{4}}}
distance {{{d}}}
Car B-fast car
{{{r+8}}}
time {{{4}}}
{{{760-d}}}
total distance {{{760}}}

{{{4r}}}={{{d}}}
{{{4r+32}}}={{{760-d}}}
use substitution method

{{{4r+32}}}={{{760-4r}}}

{{{8r}}}={{{728}}}

Speeds of Both cars
{{{r}}}={{{91}}} for CAR A
{{{r}}}={{{99}}} for CAR B

Distances

{{{4*91}}}={{{d}}} for CAR A

{{{364}}}={{{d}}} for car B.

for car B
{{{d}}}={{{396}}}