Latest Bank Exam Aptitude Question SOLUTION: Q. WHEN THE SPEED OF A MONORAIL IS 60KM/HR IT REACHES ON TIME . IF THE SPEED IS INCREASED BY 20 KMS IT REACHES ONE HOUR REALIER THEN HOW MUCH DISTANCE DOES THE MONORAIL COVER? Opt

• Placement Papers
• /
• Bank Exam

Bank Exam Question Papers:

(#M40018175) BANK EXAM question RAILWAY Keep an EYE

Q. WHEN THE SPEED OF A MONORAIL IS 60KM/HR IT REACHES ON TIME . IF THE SPEED IS INCREASED BY 20 KMS IT REACHES ONE HOUR REALIER THEN HOW MUCH DISTANCE DOES THE MONORAIL COVER?

Option
A) 240KMS
B) 250KMS
C) 260KMS
D) 270KMS

Asked In Bank Exam RAVIRAJ (11 years ago)

Solved Upasana Read Solution (4)

Is this Puzzle helpful?   (10)   (6) Submit Your Solution

Read Solution (4) :

vinod  (11 years ago)

let distance=d
1st case time t=d/60 hr
2nd case time t= (d/80)-1 hr
by equating both d=240 km

Is this solution Helpfull? Yes (3) | No (1)  

Bankim  (11 years ago)

240 kms
WHEN THE SPEED OF A MONORAIL IS 60KM/HR IT takes 4 hours.
WHEN THE SPEED OF A MONORAIL IS 60+20=80KM/HR IT takes 3 hours i.e. 1 hour less.

Is this solution Helpfull? Yes (1) | No (1)  

Upasana  (10 years ago)

Ans.A) 240 km
Speed=Distance(d)/Time(t),
i) when the speed is 60km/hr, d= 60t
ii) when the speed is increased by 20 km i.e 80km/hr, t reduces by 1 hr,
80=d/t-1
80t - 80=d
On solving equation (i) & (ii),
60t= 80t-80
20t=80
t=4 hrs
Putting value of t in eq. (i), we get d= 60* 4 i.e 240.

Is this solution Helpfull? Yes (1) | No   

theodar  (10 years ago)

travelling 60km/hr it travels a distance d in time t. then time increase 1 unit and speed is 80km/hr 80=d/(d+60/60) which becomes 8d+480=6d solving. we get d=240
ANS:A)240kms
note:negative signs are neglected in speed distance calculations

Is this solution Helpfull? Yes (1) | No (1)  

Please Login to Read Solution.