Latest CTS Aptitude Question SOLUTION: if raghv travel at 15kmph he reaches office at 10am.if he travels at 10kmph he reaches office at 10:30 am .atwhat speed should he travel so that he reaches office at 10:15.(ass

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(#M40039760) CTS Numerical Ability question Keep an EYE

if raghv travel at 15kmph he reaches office at 10am.if he travels at 10kmph he reaches office at 10:30 am .atwhat speed
should he travel so that he reaches office at 10:15.(assume he leave home at same time and takes the same route)

Asked In CTS bhagwandas kushwaha (10 years ago)

Unsolved Read Solution (10)

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Read Solution (10) :

Supriya Sinha  (10 years ago)

Time taken when speed 15km/hr = D/15
Time taken when speed 10 km/hr= D/10
therefore diff = d/10-d/15=30/60
therefore d=15
let new speed be s
15/10-15/s=15/60( time difference)
this comes to s= 12 ans

Is this solution Helpfull? Yes (26) | No   

Sarabeshwar  (10 years ago)

15 Kmph = 10 am
10 Kmph = 10:30 am

so, 5 kmph = 30 min

2.5 Kmph = 15 min

So add, 2.5 Kmph speed to original speed = 12.5 Kmph speed

Is this solution Helpfull? Yes (22) | No (14)  

vishal kumar  (10 years ago)

let assume he started at 9:00am then in one hour he travels 15 km 15=15*1
and in 3/2hour he again travels 15 km 15=10*(3/2)
so d=s*t
15=x*(3/4)
x=12km/h

Is this solution Helpfull? Yes (7) | No (1)  

Nidhi  (10 years ago)

avg speed=2*15*10/25=12 km/hr

Is this solution Helpfull? Yes (7) | No   

kavitha  (10 years ago)

12 kmph
x/10-x/15=2
x=60
so 60/10=6hrs
so starts at 8.00AM
for 1.00AM we can calculate as 60/5=12kmph

Is this solution Helpfull? Yes (3) | No   

babloo kumar  (10 years ago)

ans : 12kmph.

Is this solution Helpfull? Yes (2) | No   

ved prakash  (10 years ago)

let the time at which the man started for office is at 9 am.
when he reached office at 10 am at 15km/hr clearly says that the total distance is 15km.
when he travelled at 10km/hr he reached at 1030 am.....
so to get the speed for which he will reach at 10:15 am
s=d/t
=15/1.25 or 15/5/4
=12 km/hr

Is this solution Helpfull? Yes (1) | No   

Rudrarup Banerjee  (10 years ago)

12.66 kmph

Is this solution Helpfull? Yes | No (1)  

sruthi  (10 years ago)

10-15=5km/hr
5km/hr=30min extra
2.5km/hr=15min
10+2.5=12.5km/hr speed to reach at 10.15am

Is this solution Helpfull? Yes | No (2)  

Nilanjan Chatterjee  (9 years ago)

let assume distance is 15 km
with 15km/hr it takes 1 hr
with 10km/hr it takes 3/2 hr
so to complete d distance in 5/4 hr
it becomes 12km/hr

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