Elitmus
Exam
Numerical Ability
Time Distance and Speed
in a raceof 1600m if messi gives snijder a start of 128m,
and snijder gives villa a start of 4% in a 200m race.
and if messi and villa race then who will win the race and by what %?
messi by 25/6%
messi by 3%
cant recall other 2 options
Read Solution (Total 5)
-
- u hv type wrong question,,,,,dude.
- 9 years agoHelpfull: Yes(2) No(0)
- ya mite be dude...:-)
thnxx for posting the rite ans of the same question - 9 years agoHelpfull: Yes(1) No(0)
- let speed of A be------- Sa
let speed of B be--------Sb
let the distance covered by B while going to position XY be-----------x
so distance covered by A in same time while going to XY is----------180 +x
so total distance b/w X and Y is= x+(x+180)-----------------1
while going to position XY :-
time taken by A = time taken by B
(x+180)/Sa= x/Sb
Sa/Sb=(x+180)/x---------------------2
after lunch:-
A.C.T(according to question)
Sa=x/2
Sb=(x+180)/4.5
dividing Sa/Sb=(x*4.5) / ((x+180)*2)--------------------3
equating equations 1 and 2
9/4 = (x+180)^2 / x^2
now taking square root on both sides we get
3/2 = (x+180) / x
so x= 360
from eqn 1.
total distance=x+(x+180)
=360+(360+180)
total distance= 900 km - 9 years agoHelpfull: Yes(1) No(3)
- Wrong Question...TYPO
- 9 years agoHelpfull: Yes(0) No(1)
- messy by 25/6%
- 9 years agoHelpfull: Yes(0) No(2)
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