Question

Walk from home to the bus stop at the average speed of 5 km an hour he immediately got on the school bus and traveled at an average speed of 60 hour until he got the total distance from her is 35 km and the entire trip 1.5 hours how many kilometers did your Canon covered by walking and how many kilometers did you cover by traveling on the bus

Answer 1

5 km walking, 30 km on the bus.

Explanation:

Let

w

be the distance walking and

b

be the distance on the bus.

The total distance is 35 km.

w

+

b

=

35

The total time is 1.5 hours. Each leg has time equal to distance/speed.

w

5

+

b

60

=

1.5

Multiply by 60 to clear the fractions.

12

w

+

b

=

90

Subtract the first equation,

11

w

=

90

−

35

=

55

w

=

5

b

=

30

Check: