Latest Elitmus Aptitude Question SOLUTION: in a 100 meter race. a can beat by 10 meters and c by 19 meters. in a race of 180 meters b will beat c by how many meters? option a)20meter b)13meter c)16meter d)15meter e)none

• Placement Papers
• /
• Elitmus

Elitmus Question Papers:

(#M40024664) ELITMUS question Keep an EYE

in a 100 meter race. a can beat by 10 meters and c by 19 meters. in a race of 180 meters b will beat c by how many meters?
option
a)20meter
b)13meter
c)16meter
d)15meter
e)none of these

Asked In Elitmus ajay namdev (10 years ago)

Unsolved Read Solution (2)

Is this Puzzle helpful?   (2)   (3) Submit Your Solution

Read Solution (2) :

Gaurav  (10 years ago)

probably he wants to say that a beats b by 10 m, assuming that , let time taken by a to complete the race be x sec so speed of a = 100/x m/s
speed of b= 90/x m/s , speed of c=81/x m/s
now in 180 m race b will complete the race in 180x/90 = 2x sec
and in 2x sec c an reach (81*2x)/x = 162 m
so b can beat c by 18 m . i.e e) none of these could b the answer

Is this solution Helpfull? Yes (12) | No   

Anandita Rani  (7 years ago)

In the given Question A beats B by 10m.
Therefore A run 100m Then B run 90m
Ratio of A and B Speed is 100:90
Similarly Ratio of the Speed of A and C is 100:81

Therefore Ratio of speed of B and C is 90/100 * 100/81 = 10:9
when B run 180m then C run = ( 9/10 ) * 180 = 162m
Therefore B beat C by 180 - 162 = 18m
So Answer is None of this.

Is this solution Helpfull? Yes | No   

Please Login to Read Solution.