The ratio between the speeds of two Bullet trains is 7:6. If the second Bullet train runs 440 kms in 4 hours, then the speed of the first train is: Choose the most appropriate option
A) 89.25 km/hr.	B) 37.25 km/hr.	C) 128.3 km/hr.	D) 94.25 km/hr.	E) 96.25 km/hr.
Let the speed of two bullet trains be 7x and 6x km/hr.   Then, 6x = (440/4)= 
<gadget id="calculator">(440/4)</gadget>
<output>110</output>
110   x= (110/6) = 18.33   Hence, speed of first bullet train = (7 x 18.33) km/hr = 128.3 km/hr.   128.3 km/hr.
<result>C</result>
The ratio between the speeds of two Bullet trains is 7:6. If the second Bullet train runs 440 kms in 4 hours, then the speed of the first train is: