A car travels a certain distance taking 7 hrs in forward
journey, during the return journey increased speed
12km/hr takes the times 5 hrs.What is the distance travelled
Options Are :
10Kms
20Kms
30Kms
40Kms
- 12 Answers
- 25675 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / mohammed siddiqui
options are wrong, the correct answer is 210 km
s= d/7 forward (speed = dist/time)
s+12 = d/5 return journey
d/7 + 12 = d/5
d/7 - d/5 = -12
(5d - 7d)/35 = -12
-2d = -12x 35
d = 210
| Is This Answer Correct ? | 56 Yes | 15 No |
Answer / priyanka saraf
s= d/7 forward (speed = dist/time)
s+12 = d/5 return journey
7s=d == 5s+60=d
==> 7s=5s+60
==> s = 30
==> d = 7*s
= 7*30
= 210
| Is This Answer Correct ? | 29 Yes | 8 No |
Answer / thangamariappan
forward journey:
let speed be x km/hr and time be 7hrs
(i.e) Distance = speed * time => x*7=7x.....equ 1
Return journey:
speed increases by 12km/hr (ie) speed = x+12km/hr and
time =5 hrs
(i.e) Distance = speed * time => (x+12)*5=5x+60...equ 2
Equating 1 & 2 we get
7x=5x+60==> 2x=60=> x=30 means 30km/hr
Distance Travelled = speed * time ==> 30km/hr*7hrs=210 km
hence answer be 210 kms
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / deepak kumar
In the question it is written "INCREASED SPEED" 12 km/hr not
the speed is increased by 12 km/hr,so during return journy
speed is 12 km/hr.
s=ut
s=12*5=60 during return
total distance=2*s=120
non of the options are correct
Question has some problem with grammer too
| Is This Answer Correct ? | 12 Yes | 12 No |
Answer / shaji varghese
This question is wrong for the options given.
If the question is "The speed of the car during the foreword journey" Then the Answer is 30 kms/hour.
The distance traveled is 210 Kms
The return journey speed is 42 kms/hour.
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / ranjeet
Question is confusing. If spped is increased by 12km/hr . den ans will b 210.
"by" is missing.
| Is This Answer Correct ? | 1 Yes | 1 No |
x*7=(x+12)*5 (dist = speed*time)
x=30km/h distance traveled in one direction so
both directions for 12 hours so
total distance is 12*30=360 km
| Is This Answer Correct ? | 3 Yes | 8 No |
Find the correct meaning of the following phrase: To be in the air
15 tennis players take part in a tournament. Every player plays twice with each of his opponents. How many games are to be played?
alok and bhanu play the following min-max game. given the expression N=40+X+Y-Z,where X,Y,Z are variables representing single digits (0 to 9),Alok would like to maximize N while Bhanu would like to minimize it.Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X,Y or Z).Alok then chooses the next value and Bhanu, the variable to substitute the value.Finally Alok proposes the value for the remaining variable.Assuming both play to their optimal strategies,the value of N at the end of the game would be: a)49 b)51 c)31 d)58
If a triangle has a base B and the altitude of the triangle is twice the base, then the area of the triangle is
A plane goes from Chicago to Columbus and then comes back. It takes the same time to travel in either ways. It leave Chicago early in the morning 0644 LOCAL TIME and reaches the destination Columbus at 0849 LOCAL TIME. In the same evening it leave Columbus at 1625 hrs LOCAL TIME and reaches the destination at 1638 LOCAL TIME. Find the time that the plane takes to travel either way?
En statements par vichaar kariye. 1. Bharat me 'Janta' se bada koi nahi hai. 2. Bharat me 'Samvidhan' se bada koi nahi hai. 3. Bharat me 'Rashtrapati' se bada koi nahi hai. Enmein se kaun sa/se sahi hai/hain? a) Only 1 b) Only 2 c) Only 1 & 2 d) Only 2 & 3 e) All 1, 2 & 3
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min.Tell the speed of river.
Statebankofindia Clearical Post Please Mail Me Last 10 Years Model Question Paper Of Sbi Clerk Exam To Face The Exam My Mail Id Is Mmmadhumitha1@gmail.com SBI CLERICAL POST
30 Answers Bank Of India, HDFC, ICICI, ODI, State Bank Of India SBI,
Mohan started running from point A along with a circle of 1400 meter radius with the speed of 12 Km/hr. Ram also started running in the opposite direction from the same point with the speed of 15 km/hr. Both started at 9:00 AM. At what time will they meet first time? 9:15 AM 9:25 AM 10:00 AM 9:20 AM None of the Above
A and B can do a piece of work in 72 days; B and C can do it in 120 days; A dn C can do it in 4 days. Who among these will take the least time if put to do it alone?
4 years ago father was 9 times older than his son. after 2 years father was 42.what is the present age of his son and father.
what is zip code?
English 
