There was two trains from calcutta to kanyakumari one train is fast service travels with a speed 75km per hour another travels with a speed of 44km per hour the time taken to reach from calcutta to kanyakumari is 4hours less than the first train...find the distance b/w calcatta to kanyakumari
Choose the correct choice from the following
A) 415.8 km
B) 425.8 km
C) 435.8 km
D) 445.8 km
E) 455.8 km
let distance b/w calcutta to kanyakumari is = x km   then eqn is   x/44 - x/75 = 4   =&gt; x*(75-44)=4*75*44   =&gt; x = 425.8 km   ANSWER:425.8 km
<result>B</result>
There was two trains from calcutta to kanyakumari one train is fast service travels with a speed 75km per hour another travels with a speed of 44km per hour the time taken to reach from calcutta to kanyakumari is 4hours less than the first train...find the distance b/w calcatta to kanyakumari