Speed of M1 (Mototcycle 1) = x kph

Speed of M2 (Motorcycle 2) = (x + 15) kph

Hours traveled = 5 hours

Total distance = 575 km

Equation:

5 (x + x + 15) = 575

5 (2x + 15) = 575

10x + 75 = 575

10x = 575 - 75

10x = 500

10x/10 = 500/10

**x = 50**

Substitute x 50 for x:

Speed of M1: x = **50 kph**

Speed of M2: x + 15 = 50 + 15 = **65 kph**

**The speed of Motorcyle 1 is 50 kph, while the speed of Motorcycle 2 is 65 kph**.

To check:

Distance = Rate x Time

Distance traveled by Motorcyle 1:

= (50 kph) (5 h)

= 250 km

Distance traveled by Motorcycle 2:

= (65 kph) ( 5 h)

= 325 km.

Add the distance traveled by each Motorcycle from the same point / origin.

250 km + 325 km = 575 km

575 km = 575 km