1
Question
Q8) If Ram travels at a speed of 60 km/hr, from his home to class room, he reaches the class 10 mins late. If he travels at a speed of 80 km/hr, from his home to class room, he reaches the class 10 mins early. What is the distance between his home and classroom?
Q8) If Ram travels at a speed of 60 km/hr, from his home to class room, he reaches the class 10 mins late. If he travels at a speed of 80 km/hr, from his home to class room, he reaches the class 10 mins early. What is the distance between his home and classroom?
Open in App
Solution
The correct option is B (b) 80 kms
Ans. 8(b) Sol: 80
Let the usual time that Ram takes is ‘t’
Applying the formula D=SxT:
60*(t+(10/60))= 80*(t-(10/60))
=>Distance 60*((7/6)+(10/60))= 80kms
Ans. 8(b) Sol: 80
Let the usual time that Ram takes is ‘t’
Applying the formula D=SxT:
60*(t+(10/60))= 80*(t-(10/60))
=>Distance 60*((7/6)+(10/60))= 80kms
Suggest Corrections
1
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
