SOLUTION: Tom covers 280 km distance daily at a speed of 80km/hour if speed is reduced by10km/hour. How much time will he take to cover same distance

Question 1042835: Tom covers 280 km distance daily at a speed of 80km/hour if speed is reduced by10km/hour. How much time will he take to cover same distance
Found 3 solutions by Alan3354, josgarithmetic, ikleyn:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
d = r*t
t = d/r

Answer by josgarithmetic(39614)   (Show Source): You can put this solution on YOUR website!
RT=D is the travel rates rule relating "speed" R, time T, and distance D.

two unknown variables, two equations;
You can simply solve for t right away... and then......

Forming a table of data can often help to find the equations to make for the problem description. Here, the description was taken directly to the two listed equations without a data table.
Answer by ikleyn(52756)   (Show Source): You can put this solution on YOUR website!
.
= 4 hours.

There is no need to solve any equations.

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