Question

X takes 2 hours more time than that taken by Y to cover a certain distance. If X doubles his speed he
2
1 / 1
can cover the same distance in 1 hours less time than that taken by Y for the same distance. How much
2
time in hours) does Y require to cover the two-third of the same distance?​

Answer 1

Answer:

1hr 20s

Step-by-step explanation:

suppose y takes time a

then x will take a+2 hrs.

as vt=s

if we double the v then t will be decided by 1/2

2v× xt= s

solving this you will get x = 1/2

then x will take this time

a+2/2

put the last condition

a-a+2/2=1

solving this your a will be 2 hrs.

2/3 of 2 hrs will be 1 hr 20 s