Problema Solution
Madhulika and Rita ran a 2 km twice. Rita completed first round 2 minutes earlier than Madhulika.In second round Madhulika increased her speed by 2km/hr and Rita reduced her speed by 2km/hr.Madhulikha finished 2 minutes earlier than Rita. Find their speeds of running the first round.
Answer provided by our tutors
Rita: x
Madhulika: y
So the equation is
2/y - 2/x = 1/30
2/(x-2) - 2/(y+2) = 1/30
So
x = 12
y = 10
So speed of Rita: 12 kmh, speed of Madhulika: 10 kmh