Ramesh drives from his home at a speed of 40 km/h and reaches his college 25 minutes late. The next day he increases his speed by 10 km/h, yet he is late by 10 minutes. How far is his college from his home?
Answer & explanation
Correct answer: option 1
Let distance = X km
Time difference = 25 - 10 =15 minutes
According to question ,
\(\frac{X}{40}\) - \(\frac{X}{50}\)= \(\frac{15}{60}\)
\(\frac{X}{200}\) = \(\frac{15}{60}\)
X = 50 km
So , Distance is 50 km