Two boys on bicycles start from the same place and ride in opposite directions. One rides twice as fast as the other one. In 3 hours, they are 27 kilometers apart. What is the rate of speed for each boy?

Question

anonymous · Answer

help me out guys/girls. :)

ganeshie8 · Answer

27 = 3(x+2x)

solve for x

anonymous · Answer

3?

ganeshie8 · Answer

yeah so x is first boy speed in the equation.
can u figure out second boys speed ?

anonymous · Answer

yes i see twice as much so (2)3 = 6

anonymous · Answer

please view my next question as well

anonymous · Answer

it is similar but i dont think its the same steps thank you

ganeshie8 · Answer

ok.. but did you get why we added the speeds in above case ?

anonymous · Answer

yes because that was the total distance apart

ganeshie8 · Answer

cool.. post the next Q :)