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

1.	Albert 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's Assume the distance travelled Albert = x km. Formula Used: Time = Distance/Speed so (x/10 - x/15) = 2 HRS => (3x - 2X)/30 = 2 hrs. => (3x - 2x) = 60 x = 60 km. Time taken to travel 60 km at 10 km/hr = 60/10 hrs = 6 hrs. Formula Used: Speed = Distance/Time So, Albert started 6 hours before 2 P.M. i.e @ 8 A.M. REQUIRED speed = 60/5 kmph. = 12 kmph. Let's Assume the distance travelled Albert = x km. Formula Used: Time = Distance/Speed so (x/10 - x/15) = 2 hrs => (3x - 2x)/30 = 2 hrs. => (3x - 2x) = 60 x = 60 km. Time taken to travel 60 km at 10 km/hr = 60/10 hrs = 6 hrs. Formula Used: Speed = Distance/Time So, Albert started 6 hours before 2 P.M. i.e @ 8 A.M. Required speed = 60/5 kmph. = 12 kmph.

Albert 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's Assume the distance travelled Albert = x km.

Formula Used: Time = Distance/Speed

so (x/10 - x/15) = 2 HRS

=> (3x - 2X)/30 = 2 hrs.

=> (3x - 2x) = 60

x = 60 km.

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

Formula Used: Speed = Distance/Time

So, Albert started 6 hours before 2 P.M. i.e @ 8 A.M.

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