Latest Elitmus Aptitude Question SOLUTION: two planes belong to mirchi and green .Distance between two cities A and B is 2100km. wind blow from A to B. when races is with the wind mirchi beats green by 300km. when against t

• Placement Papers
• /
• Elitmus
• /
• Numerical Ability
• /
• Time Distance and Speed

Elitmus Question Papers:

(#M40165351) ELITMUS Numerical Ability question Keep an EYE

two planes belong to mirchi and green .Distance between two cities A and B is 2100km. wind blow from A to B. when races is with the wind mirchi beats green by 300km. when against the wind mirchi beats by 420km .find the ratio of their speeds when no wind blow ??

Asked In Elitmus isha nagar (5 years ago)

Unsolved Read Solution (3)

Is this Puzzle helpful?   (8)   (4) Submit Your Solution Time Distance and Speed

Read Solution (3) :

Devendra Marghade  (5 years ago)

6:5

Let the speed of the wind=x, Mirchi=M, Green=G kmph, then
Along the wind, speeds of Mirchi & Green are (M+x) & (G+x) kmph.
Against the wind, speed of Mirchi & Green are (M-x) & (G-x) kmph.

According to 1st condition (Along the wind): the time in which Mirchi covers 2100 km, Green covers 1800 km.
=> 2100/(M+x) = 1800/(G+x) => x=6M - 7G ---(i)

Similarly according ti 2nd condition (Against the wind) : the time in which Mirchi covers 2100 km, Green covers 1680 km
=> 2100/(M-x) = 1680/(G-x) => x=5G - 4M ---(ii)

Equating (i) & (ii), 6M - 7G = 5G - 4M
=> 10M = 12G
=> M/G = 6/5

Is this solution Helpfull? Yes (24) | No   

RAJAT BISHT  (5 years ago)

5/7

300/420

Is this solution Helpfull? Yes | No (9)  

Shubham  (5 years ago)

Speed of green 5
------------------------ = -----
Speed of mirchi 6

Let speed of mirchi be Sm
Let speed of green be Sg
Speed of wind be X.


So according to the First Part
2100 1800
----------------------- = -------
Sm + X Sg+X


According to the second part
2100 1680
----------------------- = -------
Sm - X Sg-X


Solve this two equations and you'll get your answer.

Is this solution Helpfull? Yes | No (2)  

Please Login to Read Solution.