Tech Mahindra
*
by*
Karthik
on
29-Mar-2014 17:07

A square is of side 1 km. A man travels first two sides with the 30 miles/hour and third side with 60 km/h. What is the speed at which the man has to travel the fourth side, if the overall average speed is 60 kmph?

Anjila
on
8-Apr-2014 18:48

ans : 120

VISHNU
on
16-Jul-2014 01:04

90

HIMANSHU
on
17-Jul-2014 21:41

84

Hemapriya
on
4-Aug-2014 18:18

84 kmph or 52.5 mph

sriram
on
12-Aug-2014 21:45

84

ABIRAMI.K
on
23-Aug-2014 20:24

60 km/hr

SOWMIA.
on
27-Aug-2014 20:58

pls explain?

A
on
28-Aug-2014 15:26

sam

please explain?

if you know.

please explain?

if you know.

Pritishree.S
on
9-Sep-2014 10:10

pls gve answer

Lakshmi priya
on
9-Sep-2014 11:50

which one is the correct answer

DINESH
on
14-Sep-2014 11:15

pls explain priishree

Shubham Mahindru
on
17-Sep-2015 07:34

120 average speed= total distance/total time

speed of covering 1st two sides=30miles/h ; 1mile=1.60km so 30*1.60=48km/h

total distance= 4km(4 sides)

total time =z=1/48+1/48+1/60+1/x where x is speed of the 4th side

Now, 60=4/z

by solving it x comes out 120km/h

Sakshi Yadav
on
1-Oct-2015 10:33

120

HARSHIT KEDIA
on
11-Oct-2015 21:26

84kmph or 52.5 mph

ADARSH PRAMOD KAPSE
on
28-Oct-2015 12:46

120

V Sanjay
on
19-Jan-2016 23:04

120

KONDA VENKATA SRIVATSAV
on
29-Jan-2016 16:10

120

AAMIR EQUBAL
on
1-Feb-2016 14:32

120

SAHIL BANKA
on
9-Feb-2016 14:19

84...

Subrata Ghosh
on
25-Feb-2016 00:16

120, (60*4)=240; but 30+30+60=120; so another 120 is needed to make 240. and for avg. 60 km speed

Jay Ram
on
28-Feb-2016 21:35

120

RISHABH MAHESHWARI
on
1-Mar-2016 13:24

120 as the time taken will also var with the speed 30 miles/h =48 km
time taken for 1st side=1/48
for second side 1/48
for 3rd side1/60
for fourth side 1/x
and then we know 60=4/s where s is the average time
s=1/48+1/48+1/60+1/x
on solving x=120

Divya
on
12-Mar-2016 11:36

120

AVALAPATI UMA MAHESH
on
14-Mar-2016 21:03

120

ACHAL MEHTA
on
16-Mar-2016 19:17

120, (60*4)=240; but 30+30+60=120; so another 120 is needed to make 240

PUNITH KUMAR M
on
29-Mar-2016 10:49

120

G BHARGAV
on
12-Apr-2016 10:03

120

TAMOGHNA MAITRA
on
12-Apr-2016 11:29

Approx 55.38kmph

PRITHIVIRAJ G
on
18-Apr-2016 11:28

83.6 km/hr

Shri bharanitharan
on
5-Jun-2016 13:06

120

Shri bharanitharan
on
5-Jun-2016 13:06

120

Sumit Gandhi
on
8-Jun-2016 08:13

120

vinoth.T
on
2-Jul-2016 11:46

120

VINITHA R
on
20-Jul-2016 18:29

120

BALA SUNDAR P
on
25-Jul-2016 18:39

120

KEERTHANA R
on
26-Jul-2016 18:33

120

sakthi
on
1-Aug-2016 15:23

120

VENKATESH S
on
23-Aug-2016 21:36

120

SRIAYYAPPAN S
on
7-Sep-2016 12:14

83.4394 km/hr

KHADIR SAMEEM UPPUKAR
on
7-Sep-2016 23:11

Basically 1mile=1.6093km
In first two side it maintain 30 mile per hour which is 48.2803 kmph
In 3rd side it take 60kmph
If 48.2803+48.2803+60+X =240(Basically total derived from average of 60kmph)
We get x=83.4394
THEREFORE THE FOURTH SIDE SPEED IS 83.4394KMPH

GOLLA ANIL KUMAR
on
19-Oct-2016 16:29

84km/hr

Shabin
on
5-Jan-2017 10:38

120

Gowtham
on
6-Feb-2017 20:14

65.86

GUNTA MADUGU SREE BRAHMITH
on
22-Feb-2017 17:00

84

Akanksha
on
1-Mar-2017 14:59

120miles/hr
let the sides be , a,b,c,d
speed along a=30miles/hr
along b=30miles/hr
along c=60miles/hr
along d=z miles/hr
given:
avg=60miles/hr=(30+30+60+z)/4
on solving; z=120 miles/hr

RADHAKRISHNAN G
on
14-Mar-2017 11:33

120