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d tA helicopter flies from a city A to B. The line joiningnAand B is along north-south and its length is 100km. The speed of the helicopter is kept 100 km/hand wind blows from west to east with a speed of60 km/h. The time taken by the helicopter is(1) 0.75 h(2) 1.0 h(4) 1.33 h1.25 h

Answer» d tA helicopter flies from a city A to B. The line joiningnAand B is along north-south and its length is 100km. The speed of the helicopter is kept 100 km/hand wind blows from west to east with a speed of60 km/h. The time taken by the helicopter is(1) 0.75 h(2) 1.0 h(4) 1.33 h1.25 h


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