A car covers a certain distance with uniform speed (y km/h) in x hrs. Use the following table to find the values of a, b and c.

Speed (y km/h)	a	60	150	c
Time taken (x hrs)	8	b	2	6

It is a case of inverse variation:

∴ a x 8 = 60 x b = 150 x 2 = c x 6

Taking,

a x 8 = 150 x 2

⇒ a = $\dfrac{150 \times 2}{8}$

⇒ a = $\dfrac{300}{8}$

⇒ a = 37.5

Taking,

60 x b = 150 x 2

⇒ b = $\dfrac{150 \times 2}{60}$

⇒ b = $\dfrac{300}{60}$

⇒ b = 5

Taking,

150 x 2 = c x 6

⇒ c = $\dfrac{150 \times 2}{6}$

⇒ c = $\dfrac{300}{6}$

⇒ c = 50

Hence, the value of a = 37.5, b = 5 and c = 50