Robert Is Travelling On His Cycle And Has Calculated To Reach Point A

1.	Robert Is Travelling On His Cycle And Has Calculated To Reach Point A At 2 P.m. If He Travels At 10 Kmph, He Will Reach There At 12 Noon If He Travels At 15 Kmph. At What Speed Must He Travel To Reach A At 1 P.m.?
Answer» Let the DISTANCE travelled by x km. Then,x/10-x/15= 2 3x - 2x = 60 x = 60 km. Time taken to travel 60 km at 10 km/hr =[60/10]HRS= 6 hrs. So, ROBERT started 6 hours before 2 P.M. i.e., at 8 A.M. REQUIRED speed =[60/5]kmph.= 12 kmph. Let the distance travelled by x km. Then,x/10-x/15= 2 3x - 2x = 60 x = 60 km. Time taken to travel 60 km at 10 km/hr =[60/10]hrs= 6 hrs. So, Robert started 6 hours before 2 P.M. i.e., at 8 A.M. Required speed =[60/5]kmph.= 12 kmph.

Robert Is Travelling On His Cycle And Has Calculated To Reach Point A At 2 P.m. If He Travels At 10 Kmph, He Will Reach There At 12 Noon If He Travels At 15 Kmph. At What Speed Must He Travel To Reach A At 1 P.m.?

Answer»

Let the DISTANCE travelled by x km.

Then,x/10-x/15= 2

3x - 2x = 60

x = 60 km.

Time taken to travel 60 km at 10 km/hr =[60/10]HRS= 6 hrs.

So, ROBERT started 6 hours before 2 P.M. i.e., at 8 A.M.

REQUIRED speed =[60/5]kmph.= 12 kmph.

Let the distance travelled by x km.

Then,x/10-x/15= 2

3x - 2x = 60

x = 60 km.

Time taken to travel 60 km at 10 km/hr =[60/10]hrs= 6 hrs.

So, Robert started 6 hours before 2 P.M. i.e., at 8 A.M.

Required speed =[60/5]kmph.= 12 kmph.