Saved Bookmarks
| 1. |
the distance between two places is 2500 km if the aeroplane decreases its speed by 250 kilometre per hour then it would have taken 5 hours more find the initial speed of the aeroplane |
|
Answer» Answer:500km/hr. Step-by-step explanation: Let the TIME taken be X HOURS. And be a km/hr. Distance =T*S 2500=x*a In new case, 2500=(x+5)*(a-250) 2500=ax-250x+5a-1250 As 2500, is COMMEN in both cases. ax-250x+5a-1250=ax -250x+5a=1250 -50x+a=250 In the GIVEN case, the only possible value of both the values are x=5 and a=500km. |
|