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Ordinance Making Power of President and Governors |  Mangroves Cover in India |  Coral Reefs in India |  Seasons and Climate in India |  Constitutional and Statutory Bodies in India |  Rock Edicts of Ashoka |  Types of Motions in Parliamentary Procedure |  Types of Majorities in Parliament |  Pressure Groups in World and India |  Order of Precedence |  Types of Rocks |  Treaties in Indian History |  Types of Rocks |  Features of Indian Economy |  Geographical Indications |  Ancient History Terminology and Meanings |  Schedules of the Constitution |  Nuclear Power Plants in India List  |  Types of Clouds for SSC CGL | Nuclear Power Plants in India ListTypes of Ocean CurrentsStructure: Layers of EarthAPPSC Group 1 Answer KeySSC JE 2017 QUESTION PAPEROne Word Substitution for SSC and Bank ExamsMPSC Answer Key 2017 2017Layers of AtmosphereMPSC Answer Key 2017 2017BPSC Solved Question Paper 2017MPPSC Solved Question Paper 2017GST Bill IndiaDelhi SultanateLaw Commission of IndiaOscar Awards Winner 2017 ListDiseases in CropsCommon Drugs and UsesDifferent Types of Deserts in WorldUPSC Civil Services Exam-2016 Answer KeyUPSC CAPF Exam-2016 Answer Key | UPPSC UPPER Subordinate Exam-2016 Answer Key

Friday, 27 February 2015

Time & Distance

  MOHAMMAD ZEESHAN       Friday, 27 February 2015
        Time and Distance
Time and Distance

Distance = Speed × Time
     Time and Distance
Time and Distance
  
Points to Remember:
·         Average speed is always equal to total distance travelled to total time taken to travel that distance
·         If certain distance is covered at x km/hr and the same distance is covered at y km / hr then the average speed during whole journey is :
                                                                    2xyx+y kmph

  

Example:
A train covers a distance in 50 min , if it runs at a speed of 48kmph on an average. The speed at which the train must run to reduce the time of journey to 40min will be.

Explanation:
              Time=50/60 hr=5/6hr
              Speed=48mph
              Distance=S×T=48×5/6=40km
              Time=40/60hr=2/3hr
              New speed = 40×3/2 kmph = 60kmph 
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