GRE
Exam
Numerical Ability
Time Distance and Speed
a is twice as fast as b and b is thrice as fast as c is. the journey covered by c in 54 min will be covered by b in
Read Solution (Total 1)
-
- let c = x km/h
then b = 3c = 3x km/h
and a = 2b = 2*3x = 6x km/h
let journey is of d km is covered by c in 54 min
so, d = x * 54/60
=> d = 9x/10
time taken by b to cover = d/3x = (9x/10)/3x = 3/10 hr = 18 min
- 10 years agoHelpfull: Yes(2) No(0)
GRE Other Question