Time & DistanceC.S.VEERARAGAVANSIXPHRASEThe Finishing School

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Basic concepts

To convert from km/hr to m/secTo convert from m/sec to Km/hr

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To convert from km/hr to m/secTo convert from m/sec to Km/hr

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Distance = Speed x time takenI. A man leaves P and reaches Q in 3 hours at an average speed of 60 kmph. What is the distance from P to Q? 1)240km 2)150km 3)300km 4)180kmDistance from P to Q = Speed x time taken = 60 x 3 = 180 km.

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Time taken to cross bridgeA train of length 300m travels at a speed of 36 kmph. In how many seconds does it cross a bridge of length 700m?

Distance travelled = Length of the Train + Length of the Bridge = 300 + 700 = 1000mII

Speed11

Speed

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Speed5

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Ratio of speeds3

Ratio of speeds8

Rule 2

Speed7

AVERAGE SPEED4

Average SpeedV

Average speedXIII

Average speedXIV

Average speedXI

Distance13

Distance10

Time taken1

Rule 4XI

Rule 52

Rule

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Distance9

Speed14

Stopping time15

Meeting TimeXVIIPCQvijayajay54 min24 min

Meeting timeXVI

Meeting TimeIV

Meeting TimeIIITime TravelledXYBalance time travelled By X and YIn one hour4060260,240In Two hours80120220,180In Three hours120180180,120

Meeting TimeP started running towards North at 6.00 am. Q started running towards North at 8.00 am. At what time do they meet, if their speeds are in the ratio 3:5?If both starts from the same point, then the distance of separation between them is the distance travelled by P in 2 hours. (8.00 am 6.00 am)The information about the starting point is not given. Hence data insufficient.VIII

SpeedVI

Time & distance in ClockVII

Time & Distance in Boat & StreamsIX

Time & Distance in Races & GamesX

Time & Distance in racesA beats B by 10 meters in a 100 metres race. If B beats C by 20 meters in the same race, then A beats C by how many meters in that race? 1) 32 2)303) 284) 26Ratio of speeds of A and B = 100:90 = 10:9Ratio of speeds of B and C = 100:80 = 10:8Ratio of speeds of A,B & C = 100: 90: 72A:C = 100:72A beats C by 28 meters.XV

XII

XVII

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