Mukesh has to cover a distance of 6 km in 45 min. If he covers one half of the distance in 2/3 of th

priya paul   9 years AGO

45min time - 6km dist.
2/3 of time - 1/2 dist.=30min - 3km dist.
rest time=(45-30)=15min and rest dist=(6-3)=3km
so 15 min - 3km
1 min - 3/15
60min - 3/15)*60
=12km/hr. ans.
pp

Like? Yes (5) | No   

lokesh   9 years AGO

required speed = remaining distance / remaining time
= 3 km / 15 min
= 12 kmph

Like? Yes (4) | No (1)  

Ankita Sharma   9 years AGO

Total distance = 6km
Total time =45 min
Total distancce covered in 2/3 of time(i.e. 30 min) = 3 km
so the distance left to be covered = 3 km
and the time remaining = 15min=15/60 hours=1/4 hours
so the speed should be = remaining distance/remaining time
=3/(1/4)=3*4=12kmph

Like? Yes (3) | No   

santu ghosh   9 years AGO

remaining distance=6/2km=3km
remaining time=45-(45*2/3)min=15min
so ,his speed to cover the remainig dist, & rem. time =(3/15)*60=12kmph

Like? Yes (3) | No (1)  

Shiva Sharma   9 years AGO

3 km covered in 30min
3 km covered in 15 min which is 1/4 hr
So speed = 3*4 = 12 Km/hr

Like? Yes (3) | No (1)  

G Mounika   9 years AGO

Mukesh covers one half of the distance in 2/3 of the time.
Total distance=6 km
Remaining distance= 6 - (1/2*6) = 3 km.
Total time = 45 min.
Remaining time = 45 - (2/3*45) =15 min = 1/4 hr.
Speed= Remaining distance/ Remaining time
Speed= 3 km/ (1/4) hr =12 kmph.

Like? Yes (2) | No   

SAYAN CHATTERJEE   9 years AGO

he covers 3 km in 45*2/3= 30 min
so he has to cover remaining 3 km in 15 min
so speed will be 3/15 km/min
= 3/15*60= 12 kmph (9)

Like? Yes (1) | No   

pankaj kumar   9 years AGO

solu:- total distance = 6 km .
total time = 45 min.
one half dist coverd in 2/3 of time
so, he coverd 3km in 30 min
again , remaining dist = 3km
remaining time = 15 min
speed in kmph = dist/ time = 3* 60/15= 12 kmph
ans option is 9.

Like? Yes (1) | No   

ramakrishnateja   9 years AGO

given the dist=6km. one half of the dist = 3km time for that is 30 min. so rem dist =3km time left=15 min. speed=3km/15min=12kmph

Like? Yes (1) | No   

ankit dhingra   9 years AGO

6 km covered in 45 min
condition gives ,
1st 3 km covered in 30 min
so, next 3 km must be covered in 15 min
so, speed = D/T = 3/.25 [.25 as 15 min is 1/4th of an hour]
= 12 kmph

Like? Yes (1) | No   

shivjee yadav   9 years AGO

1/2 of his distance in 2/3 time..that means 3km distance in 45*2/3=30 minute.rest of distance 3 km in 15 minute(1/4 hour) that means distance cover 1/4 hour =3km,in 1hour must be 3/1/4=3*4=12kmph

Like? Yes (1) | No   

mamta kumari   9 years AGO

remaining distance = 3km
remaining time=1/3*45 = 15min=1/4hr
so . required speed = 3*4 km/hr =12km/hr

Like? Yes (1) | No   

SAURABH SINGH   9 years AGO

in remaining one third time i.e. 15 min he travells 3 km
that's why in 60 min he will travel 12 km.

Like? Yes (2) | No (1)  

rammohanrao   9 years AGO

half time means 3 hrs 30 mins he travelled
remaining 3 km he travelled in 15 means so (3*60)/15

Like? Yes (1) | No   

ruby karmakar   9 years AGO

3km 30 min. Speed for remaining 3km is 3000/(15*60)=10/3m/s. 10/3*18/5= 12kmph

Like? Yes (1) | No   

saikumar   9 years AGO

He covers 3km in 30 min,then he has to travel more 3km in 15min.so 15min=1/4hr
dis=speed*time
3=speed*1/4
speed=4*3=12

Like? Yes (1) | No   

charul kardam   9 years AGO

he travels first half i.e 3km in 45*2/3 min=30 min=1/2 hr
thn for nxt 3km in left 15min speed=distance/time= 3/(15/60)= 12kmph

Like? Yes (1) | No   

Aishwarya Buktare   9 years AGO

Mukesh has to cover 3kms in o.25 hr
3km : 0.25 hr
x : 1 hr????
x will give the answer.

Like? Yes (1) | No   

shiva   9 years AGO

He covered half of the distance in 2/3 of the time i.e., in 30 min, Then he has to cover the remaining 3 km in 15 min .
So his speed must be at 12 kmph to reach his destination

Like? Yes (1) | No   

palu   9 years AGO

he covers 6km - 45 min.
given 1/2(distance - 2/3(time)
=> 3km in 30 min
now remaining time is 45-30=15 min
rest is 3km in x min.
speed=d/s= 3km/15min=3*4=12. (14 min=1/4 hour)

ans) 12 kmph

Like? Yes (1) | No   

akanksha   9 years AGO

3 km is covered in 30 min
now time left is 15 min=3/12 hr
remaining distance=3 km
so speed must be=D/T=(3*12)/3=12kmph

Like? Yes (1) | No   

Kirty   9 years AGO

total dist=6 km
half distance=3 km in ((2/3)of 45 min)i.e. in 30 min
remaining distance=3 km in (45-30)min
speed=3*60/15 km/h
=12 km/h

Like? Yes (1) | No   

bhavya dubey   9 years AGO

mukesh had to cover 6 km in 45 min. he has covered half of distance means 3 km of distance in 2/3 of time means in 30 min. remaining time =45-30=15min
remaining distance=6-3=3km
speed=((3/15)*60)=12kmperhour

Like? Yes (1) | No   

Manish kumar   9 years AGO

6 km in 45 min.
6*(1/2)=3km in 45*(2/3)=30 min.
then 3km remaining in 15 min.
thus speed=3/(15/60)=12kmph

Like? Yes (1) | No   

ROHIT KUMAR   9 years AGO

Cover distance of 6 km in 45 min
Covers 6*1/2 in 45*2/3 min
i.e 3 km in 30 min
so remaining distance of 3 km should be cover in 15 min.
so speed= 12kmph

Like? Yes (1) | No (1)  

Devendra Marghade   9 years AGO

Distance remaining =3 Km, Time remaining=(1/3)*45 min.=15 min=1/4 hour
So required speed=3/(1/4)= 12 Kmph
Option (9)

Like? Yes (1) | No (1)  

Piyush Telang   9 years AGO

Total Distance ( D ) = 6 km
Total Time ( T ) = 45 min = 3/4 hr
Half Distance ( d1 ) = D / 2 = 3 km
Time Taken to cover d1 distance ( t1 ) = 2/3 x T = 1/2 hr
Remaining Distance ( d2 ) = D - d1 = 3 km
Time Left to cover d2 distance ( t2 ) = 1/3 x T = 1/4 hr
Speed required to cover d2 distance in t2 time is given as
S = d2 / t2 = 3 km / (1/4 hr) = 12 km/hr

Like? Yes (1) | No (1)  

ABHINAV PUSHPAM   9 years AGO

6KM in 45 min
Also given that 3 km he takes 2/3*45 = 30 min
It means he has 15 min left to travel 3km.
So 3/15*60 = 12 kmph
or

Time left = (1/3×45/60) hr = 1/4 hr
Distance left = 3 km
Speed required = (3+1/4) km/hr = 12 kmph

Like? Yes (1) | No (1)  

neha gupta   9 years AGO

Mukesh has covered 3 km in (2/3 of 45) 30 minutes.
Remaining distance= 3 km
Remaining time = 45-30 = 15 minutes = 15/60 = 1/4 hrs
speed required = 3/(1/4) = 3*4 = 12 kmph.

Like? Yes (1) | No (1)  

Dinni   9 years AGO

6km=45min
Given he has covered, 3km=30min
Remaining 3km should have to travel in 15 min
So, speed=(distance/time)
X=3/15*60 =12km/hr.

Like? Yes (1) | No (1)  

Nishant kumar   9 years AGO

one half distance is 6/2= 3
2/3 time of 45min = 30min
remaining 3 km should cover in 15 min
then speed should be- 12 kmph

Like? Yes (1) | No (1)  

Sukanya   9 years AGO

3km in 30 min is 6km/hr

Remaining 3km in 15 min is 12km/hr

Like? Yes (1) | No (1)  

Dinesh kumar   9 years AGO

He covers 1half in 2/3 of time.
45*(2/3)=30.
He covers the remaining distance (3 kms ) in 15 mins.
Therefore in 1 Hr he covers 12 kms.
therefore 12 kmph.

Like? Yes (1) | No (1)  

Archie   9 years AGO

Remaining dist=6km/2=3kms
Time taken to cover 3 kms =(2/3)*45=30mins or 1/2 hrs
Time left =15mins
Required speed
=Dist. left/Time left
=3/15mins
=(3*60)/15 kmph
=12kmph
Hence option 9 is correct

Like? Yes (1) | No (1)  

praveendas   9 years AGO

2/3 of time is 30 min coverd 3 km.
in order to cover 3km in 15 min the required speed is (3/15)*60=12

Like? Yes (1) | No (1)  

Soma Naresh   9 years AGO

remaining distance is 3 km
remaining time= 15 min
speed = 3km÷15 min
3×60/15 kmph
12kmph

Like? Yes (1) | No (1)  

Asha Verma   9 years AGO

Time in which rest distance of 3 Km has to be covered is = T-(2/3 )*T= T/3
Thus time= 45/3= 15min
Speed= 3÷(15/60)=12 km/hr

Like? Yes (1) | No (1)  

Sunil Sharma   9 years AGO

half means 3 km in 30 min
and rest 3 km in 12kmph

Like? Yes (1) | No (1)  

ANKUR ANAND   9 years AGO

left distance=3km
left time=15 min
So, required speed =(3*60/15)kmph=12kmph

Like? Yes (1) | No (1)  

SOMA NARESH   9 years AGO

another half of distance = 3KM
Remaining time = (1/3)*45 = 15min
speed = 3KM/15 min = 3*60/15 = 12 Kmph

Like? Yes (1) | No (1)  

Patralika Mitra   9 years AGO

6km -> 45 min
(1/2) * 6 = 3km and (2/3) * 45 = 30 min
Remaining time = 15 mins = 15/60 = 1/4 hour
Remaining distance = 3km

speed = dist/time = 3/(1/4) = 12km/hr

Like? Yes (1) | No (1)  

anand vijay   9 years AGO

time required to cover 3 km(i.e half of distance)=2/3*45 min=30 min
required speed to cover rest of the distance=left distance / left time=6-3/45-30=3*60/15 =12 kmh (1hour=60 minute)
option 9)

Like? Yes (1) | No (1)  

vivek kashyap   9 years AGO

left distance=6*(1-1/2)=3km
time left=(45/60)(1-2/3)=1/4 hr
required speed=3*4=12km/hr

Like? Yes (1) | No (1)  

Abhinav Jain   9 years AGO

3 KM distance is covered in 30 mins
and 3 Km distance is to be covered in remaining 15 mins
so the speed should be 12kmph

Like? Yes (1) | No (1)  

krishna chandrika   9 years AGO

6km in 3/4hr

one half distance i.e 3km in 2/3of time=2/3*3/4=1/2
3km in 1/2hr

remaining time=1/4hr
remaining distance=3km

speed=distance/time
=3*4 = 12kmph

Like? Yes (1) | No (1)  

k sureshbabu   9 years AGO

3KM COVERD IN 30MIN
REMAINING 3KM HAS TO COVER IN 15MIN
SO 4*3=12KMPH

Like? Yes (1) | No (1)  

Balaselvaraj M   9 years AGO

speed equal to distance/time.
he have also covered 3Km in 30 minutes.
so he should covered remaining distance of 3Km in 15minutes.
therefore the speed is 3*60/15 equal to 12Kmph.(here minutes are converted into equivalent hours)

Like? Yes (1) | No (1)  

SHUBHAM RAJ   9 years AGO

half distance cover in 2/3 of 45min
then remaining time to cover other half = 45*2/3= 15min

speed = 3km/15min *60 = 12kmph

Like? Yes (1) | No (1)  

RAJAT KHANDELWAL   9 years AGO

remaining distance = (1/2)*6= 3
remaining time = (1/3)*45 =15 min

speed = distance/time =(3/15)*60=12 km/hr

Like? Yes (1) | No (1)  

raviteja   9 years AGO

3km in 2/3 hr.
rem = 3km
rem time= 15min=1/4 hr
speed =3/1/4=12

Like? Yes (1) | No (1)  

kvsnlr   9 years AGO

remaining distance=3km
remaining time=15 min=0.25hr
velocity=distance/time=3/0.25=12kmph

Like? Yes (1) | No (1)  

Lavanya Rajendran   9 years AGO

30min=3km
Thn with remaining 15min he has to cover 3km so speed =(3*60)/15=
12km/hr

Like? Yes (1) | No (1)  

pooja jha   9 years AGO

initially distance =6/2=3km
time taken=45*2/3=30 min.
so reamianing time=15min and distance=3km.
therefore speed=3/(15/60)=12kmph

Like? Yes (1) | No (1)  

prem kishor   9 years AGO

time taken in cover half distance=30min
then left time=15min=14hr
so, speed= 3(14)=12kmph

Like? Yes (1) | No (1)  

Pinku Burnwal   9 years AGO

remaining distance=total distance-distance cover=6-3=3Km
time left=45-(2/3*45)=15min=15min
speed required=3*60/15=12kmph
option 9

Like? Yes (1) | No (1)  

Nitish Kumar Mahto   9 years AGO

first half distance travelled by 30 min. and in rest 15 min travell he should go 3km .ie speed=3km/(15/60)hr. which gives the required speed ..ie 12kmph

Like? Yes (1) | No (1)  

Deepak   9 years AGO

Remaining time, t = 15 / 60 hr,
Remaining distance to be covered, d = 3 km,
Speed = d/t = 3 * 60 / 15 = 12 kmph

Like? Yes (1) | No (1)  

pratyush   9 years AGO

he covers 3 km in 1/2 hr
Now remaining time (3/4-1/2)=1/4 and remaining distance=3km
so, Required speed=3*4=12

Like? Yes (1) | No (1)  

swethakottakota   9 years AGO

remaining time = 15 minutes= 1/4 hr

velocity = 3km/ .25 hr = 12kmph

Like? Yes (1) | No (1)  

vivek   9 years AGO

Remaining distance=3km
Remaining time=15 min
Speed= 3*60/15=12 km/hr

Like? Yes (1) | No (1)  

Ashu Kumar   9 years AGO

T=45MINUTE=(3/4)HOUR ,L=6 KM
V1=(L/2)/T1=3/(1/2)=6
V2=(L/2)/T2=3/(1/4)=12 ANSWER

Like? Yes (1) | No (1)  

JAHAGIRDAR RUPALI MANOJ    9 years AGO

Mukesh cover the 6 Km distance in 45 min.
for half of dist. i.e.3 km in 2/3 means 45*(2/3)=30 min

then remaining distance is 3 km covers in 15 min.
for calculating the speed use
Velocity=distance/time
v=3km/15 min
v=3/(15/60)=12kmph.
option 9)

Like? Yes (1) | No (1)  

Anubhav jain   9 years AGO

speed=d/t
speed=6*60/45=8 kmph
If half distance is 3km cover in 2/3 time(30 min)
Speed= 3*60/30=6 kmph
then remain. distance cover in remain. time is speed
d=3km
t=15min
Speed= 3*60/15=12kmph

Like? Yes (1) | No (1)  

rahul shaw   9 years AGO

one half means 3km which has been covered in ? of 45 min=30 min
so remaining time=15min and uncovered distance is 3km
speed =dist/time
(3*60)/15=12 km/hr
60 is multiplied because of conversion of min to hour.

Like? Yes (1) | No (1)  

ANKIT NIGAM   9 years AGO

bcz time factor will remain the same throughout the journey

Like? Yes (1) | No (1)  

sai   9 years AGO

he has to cover 6km in 45 min so that the speed is 6/3/4=8 km/hr
but he cover 1/2 of the distance i.e 3 km in 2/3 rd of the time i.e 30 min.
so he has to cover 3 km in 15 min..
so the speed=3/1/4=12 km/hr

Like? Yes (1) | No (1)  

sowjanya kasam   9 years AGO

6km->half=3km
45mins->2/3=30mins
remaining 15mins and 3km in order to achieve it he has to travel 12kmph

Like? Yes (1) | No (1)  

Ravikesh Kumar   9 years AGO

total 6km,time 45min=3/4hr
he covers half distance in 30mins i.e.1/2 hr
so,remaining distanc=3km and remaining time is 1/4hr
speed=distance/time=3/(1/2)=12km/hr

Like? Yes (1) | No (1)  

Deshbhushan Shivgonda Patil   9 years AGO

He covers 3km in 2/3 time means in 30 min. Then he has to cover another 3 km in 15 mintus so 3*4=12km/hr

Like? Yes (1) | No (1)  

Prateek Sharma   9 years AGO

remaning distance= 3km
remaning time = 15 min
so speed = 12kmph

Like? Yes (1) | No (1)  

chirag mehta   9 years AGO

6km - 45min
he has covered alrady 3km in 30min( 2/3 of 45)
he has to cover 3km more in 15 mins ,
since ans is in kmph ,.. it is 3(60)/15

Like? Yes (1) | No (1)  

Deepak kushwaha   9 years AGO

mukesh have to cover 6km in 45min(3/4hr)
he cover half distance in 2/3 time
means,
3km in 1/2hr
now he have to cover
3km in 1/4hr
speed=distance/time
speed=12kmph(option 9)

Like? Yes (1) | No (1)  

kesava   9 years AGO

he covered 3km in 30 min.for remaining 3 km he has to increase his speed to 12kmph.
3km=30min
3km=????

Like? Yes (1) | No (1)  

srilekha   9 years AGO

he covers first 3kms in 2/3*45=30min=
so he has to cover next 3 kms in 15 mins(1/4 hrs) bcoz 30+15=45
so as d=v*t; 3=v*(1/4);v=12km/hr

Like? Yes (1) | No (1)  

venkatesh pavuluri   9 years AGO

since he completed half the distance in d given time ,we get with 14hrs of time and 3km distance..

Like? Yes (1) | No (1)  

shivani gupta   9 years AGO

first half the distance cover 3km in 30 min (2/3 of 45 min)
and remaining distance 3km in 15 min(45-30=30min)
speed=distance/time
3*60/15=12 kmph

Like? Yes (1) | No (1)  

Purnima Paliwal   9 years AGO

mukesh cover 3km in 30 min. remaining 3 km in 15 min his speed should be 12 as d=s*t so
3=s*1/4
s=12

Like? Yes (1) | No (1)  

Arjun Raju   9 years AGO

3km covered in 30mins. hence for next 15 mins speed should be 3 kms.hence 12 kmph

Like? Yes (1) | No (1)  

RAJESH PARSHAD   9 years AGO

mukesh has to cover the remaining half distance in 1/4 hours

speed= distance*time
=3/(1/4)=12kmph

Like? Yes (1) | No (1)