Homework Help: Math

Posted by Simran on Wednesday, January 9, 2013 at 6:26am.

Plz help me to solve this question
The distance between two stations A & B is 230km.Two motorcyclistr start simultaneously from A&B in opposite directions and the distance between them after 3hours becomes 20km.if the speed of one motorcyclist is 10km,hr less than that of the other,find the speed of the two motorcyclists.

Math - HELP HELP HELP MNHS, Wednesday, January 9, 2013 at 7:52am
let x be the rate(speed)

TABLE:
R * T = D
M1 x 3 = 3x
M2 x+10 3 = 3(x+10)

solution:
3x+3(x+10)=210 (210, bcoz 230-20 or
distance after 3hrs)
3x+3x+30=210
6x=180
x=30kph
Math - Simran, Wednesday, January 9, 2013 at 9:15am
Thank you..

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