The ratio between the speeds of two trains is 8: 9. If the second train runs 270 kms in 3 hours, then the speed of the first train is ?
Choose the most appropriate option:
A) 85 km/hr B) 835 km/hr C) 80 km/hr D) 82 km/hr E) None of these
Explanation:   Let the speeds of two trains be 8X and 9X km/hr.   9/X=270/3=&gt;X=10Km/hr   So speed of first train is   10*8= 
<gadget id="calculator">  10*8</gadget>
<output>80</output>
80 km/hr   Option 80 km/hr
<result>C</result>
The ratio between the speeds of two trains is 8: 9. If the second train runs 270 kms in 3 hours, then the speed of the first train is ?