The ratio between the speeds of two trains is 7: 8. If the second train runs 440 kms in 4 hours, then the speed of the first train is:  Choose the correct choice from the following options:	A) 47.4 km/hr	B) 57.19 km/hr	C) 68.13 km/hr	D) 96.25 km/hr	E) 86.25 km/hr
Let the speed of two trains be 7x and 8x km/hr.   Then, 8x = (440/4)= 
<gadget id="calculator">(440/4)</gadget>
<output>110</output>
110   x= (110/8)= 
<gadget id="calculator">(110/8)</gadget>
<output>55/4 = around 13.75</output>
13.75   Hence, speed of first train= (7 x 13.75) km/hr = 96.25 km/hr.   Answer : 96.25 km/hr.
<result>D</result>
The ratio between the speeds of two trains is 7: 8. If the second train runs 440 kms in 4 hours, then the speed of the first train is: