In a race of 800 mtr gives Mary a start of 200 mtr and then loses the race by 20 seconds. What is the speed of Mary & Rose respectively ? If the ratio of respective speeds be 3:2?
Select.
A) 10 m/s	B) 12 m/s	C) 16 m/s	D) 20 m/s	E) 30 m/s
Let the speed of Kaushik be and speed of Piyush be and let the time taken by Piyush be t second then,   t = 20 s   Speed of Priya = 30 m/s   and Speed of Kala = 20 m/s   20 m/s
<result>D</result>
In a race of 800 mtr gives Mary a start of 200 mtr and then loses the race by 20 seconds. What is the speed of Mary & Rose respectively ? If the ratio of respective speeds be 3:2?