Ratio b/w speeds of two trains is 7:8. If second train runs 440 km in 4 hr, then the speed of the first train is:

Ans:
A) 96.5 km/hr
B) 98.2 km/hr
C) 96.2 km/hr
D) 90.8 km/hr

• C) 96.2 km/hr
  
  Speed of 2nd train = 440/4 = 110 km/hr
  Let the speeds of two trains be 7x & 8x km/hr respectively, then 8x=110 => x=55/4
  Therefore, speed of the first train=7x=7*(55/4)=96.25 km/hr.
• 5 years agoHelpfull: Yes(1) No(1)
• In second train- 4hrs=440km, then 1hr=440/4 = 110km.
  consider the speed of first train be x.
  the ratios of two train speed will be -> x/110=7/8,
  therefore,
  x= ( 7*110)/8
  x=96.2 km/hr
• 4 years agoHelpfull: Yes(0) No(0)