SOLUTION: A student starting from his house walk at a speed of 2.5 km per hour and reaches his school 6 minute late. Next day at the same time he increases his speed by 1 km per hour and rea

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: A student starting from his house walk at a speed of 2.5 km per hour and reaches his school 6 minute late. Next day at the same time he increases his speed by 1 km per hour and rea      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 995139: A student starting from his house walk at a speed of 2.5 km per hour and reaches his school 6 minute late. Next day at the same time he increases his speed by 1 km per hour and reaches 6 minute early. The distance between his school and house is?
A)3½ km
B)4 km
C)1¾ km
D)6 km
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
t, time if arrival point is satisfied as normal time. 

                   speed     time        distance
Trip late          2.5       t+1/10       d
Trip early         3.5       t-1/10       d

The two unknowns in the system of equations are d and t.
system%28%282.5%29%28t%2B1%2F10%29=d%2C%283.5%29%28t-1%2F10%29=d%29

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

A student starting from his house walk at a speed of 2.5 km per hour and reaches his school 6 minute late. Next day at the same time he increases his speed by 1 km per hour and reaches 6 minute early. The distance between his school and house is?
A)3½ km
B)4 km
C)1¾ km
D)6 km
Duplicate.....see problem # 994570

Distance: highlight_green%281.75%29 km