Elitmus
Exam
Numerical Ability
Time Distance and Speed
Shweta rides at the rate of 10 km per hour but stops for 10 minutes to take rest at the end of every 15 km. How many hours will she take to cover 100 km
Read Solution (Total 16)
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- 11 hours
because after every 15 km she will take a rest of 10 minutes so after every 90 minutes she will 10 min break.
she will 10 hours to cover 90 km distance and 1 hour to cover remaining 10km.
so the answer is 11 hours. - 9 years agoHelpfull: Yes(16) No(0)
- 11hours
v=10km/h
15km time 1(1/2)
rides time =6*1(1/2)+1=10
15 30 45 60 75 90 100
6time rest =6*10=60
total time=11 hour
- 9 years agoHelpfull: Yes(4) No(0)
- 11hours
for every 15 km she takes 100minutes
and as 15*6 =90 i.e for 90kms she takes 600minutes now for 10 km she takes 60 minutes
total=660minutes= 11hrs - 9 years agoHelpfull: Yes(3) No(0)
- for the first 15 km she will stop for 10 min so time taken for 1st 15=15/10+10/60hr=5/3
so in 100 km she will stop 6 times for 15 km an d remaining 10 km is left 100/15
so 6*5/3+10/10=11hrs - 9 years agoHelpfull: Yes(2) No(0)
- take breaks after 15 km , to cover 100 km she took breaks for 6 time for 10 min
total break time = 6 * 10 = 60 min = 1 hr
speed = 10 km/hr
time = 100 / 10 = 10
total time taken = time + total break time = 10 + 1 = 11 hrs
she will require 11 hrs to cover 100 km distance
- 9 years agoHelpfull: Yes(2) No(0)
- 10 hours and 50 min
she covers 100 km with a speed of 10 km/h
so time taken is 10 h
and at each 15 km she will rest for 10 min so 15..30..45..60..75..90 total 5 times she will rest means 50 min - 9 years agoHelpfull: Yes(1) No(1)
- she covers 30km in 3hr 20min
covers 60 km in 6hr 40 min
covers 100km in 11hr - 9 years agoHelpfull: Yes(1) No(0)
- 11hrs
3/2*6+1+1 - 9 years agoHelpfull: Yes(1) No(0)
- (100/10)+int(100/15)*10= 11 hours
- 9 years agoHelpfull: Yes(0) No(0)
- for every 15km ,time taken=time taken for 10km+time taken for 5km+rest time=60+30+10 mins
so 15*6+10km=100*6+60 mins=660mins=11 hours. - 9 years agoHelpfull: Yes(0) No(1)
- she wil take 11 hours...
for every 15 km she takes 100 min...
so,
for 30km, she vl take 200 min
so on..
for 90 km she take 600 min...
for next 10 km she will take 60 min..
therefore total time taken = 660 min.. which is 11 hours - 9 years agoHelpfull: Yes(0) No(0)
- Total no of rests=5
Time of rest=50 min
Total no of trip of 15 km=6+ some portion of 7th(I.e 10km)
So total time=1.5*6hr+50 min+1hr=10 hr+50 min...
- 9 years agoHelpfull: Yes(0) No(0)
- 11hrs
every 2hrs covers 15km
so 10hrs covers 90km
remining 10km in 1hr
So total time 11hrs - 9 years agoHelpfull: Yes(0) No(0)
- ride rate is 10 km/h
for 100 km its will take time as 100/15=6.abcd
so it will take rest in hole journey is 6*10=60 and to travel 100 km as per rate 10 km/h its will take 10 hours
so finally shweta takes 10+1=11 hours to complete the journey. - 9 years agoHelpfull: Yes(0) No(0)
- she will take 100 min for every 15 km, so for covering 90 km she will take 600 min i.e 10 hrs, and the rest s'll cover in next 1 hr ..total 11hrs
- 9 years agoHelpfull: Yes(0) No(0)
- 11 hours.
Because he stops 6 times in 90 km.distance,So,The extra time is 60 min. - 9 years agoHelpfull: Yes(0) No(0)
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