Two buses travel to a place at 45 kmph and 60 kmph respectively. If the second bus takes 11/2 hours

Sagar Kumar Subudhi   8 years AGO

if we take the lcm of 45 and 60 den it will be 180.. der is 1hr gap between 2 bus to travel 180 km.. so 5.5 hr gap will be in 180*5.5=990 km

Like? Yes (14) | No   

mcamanjeet   8 years AGO

let the time taken by first bus is t
now 45t=60(t-11/2)
15t=330
t=22h
hence the length of journey is =45*22=990

Like? Yes (15) | No (2)  

sugayathri   8 years AGO

distance = speed*time
s1 = 45kmph
s2 = 60
t1 = xhrs
t2=x-11/2hrs

s1t1=s2t2

45x = 60(x-11/2)
x = 22hrs
d=22*45

= 990km

Like? Yes (9) | No (2)  

MRITUNJAY   8 years AGO

distance be=d
then
d(1/45-1/60)=11/2
d(4-3/180)=11/2
d=990km
option 7

Like? Yes (6) | No (1)  

Yashi Das   8 years AGO

Let the length of the journey be x km.
Then
(x/45)-(x/60)=11/2
x=990km

Like? Yes (4) | No   

THUMMALA VINEESHA   8 years AGO

let first bus take x hrs and sec bus takes (x-11/2)hrs
45x=60*(x-11/2)
x=22
====>>45*22=990

Like? Yes (4) | No   

Devendra Marghade   8 years AGO

If distance=x km., then
(x/45) - (x/60) =11/2
(4x-3x)*2= 180*11
x=990
Option 7)

Like? Yes (3) | No   

Richa Saini   8 years AGO

Speed of 1st train=45kmph
Speed of 2nd train=60kmph
Let distance be D

As we know, Distance =speed*time
therefore time=distance/speed

Time taken by first train-11/2= Time taken by second train
=>(D/45) -11/2 = D/60

By solving this equation, we get D= 990
=>option (7) is the answer

Like? Yes (4) | No (1)  

UMANG RASTOGI   8 years AGO

Let 1st car time=t1
2nd ,, ,, =t2
than from the formula, speed=distance/time

distance by 1st=distance by 2nd
t1*45 = t2*60
bcz t2=t1-11/2
so t1*45=60*t{t1-11/2}
on solving t1=22
so distance=t1*45=990

Like? Yes (2) | No   

Rizul   8 years AGO

Let the two buses be a and b
Let the journey distance be x
speed of a = 45 kmph
speed of b = 60 kmph
time(for b) = time(for a) - 11/2
x/speed(for b) = x/speed(for a) - 11/2
x/60 = x/45 - 11/2
Solving this equation, we get x=990 km

Like? Yes (2) | No   

abhi   8 years AGO

v1t1=v2t2
45t=60 (t-11/2)
then t=22hrs
d=45*22=990km

Like? Yes (1) | No   

debanjan   8 years AGO

Let the length be x km
Now
X/45-X/60= 11/2
Solving X=990 km

Thank you

Like? Yes (1) | No   

PRABHAT KUMAR   8 years AGO

Let the length of journey be x
According to question,
x/45-x/60=11/(2*60)
x=990
Option 7

Like? Yes | No   

harsh dhir   8 years AGO

Let length of journey =x km
Time=Distance/speed
According to question,
x/45-x/60=11/2
on solving,we get x=990 km

Like? Yes | No   

Sagar Jinachandran   8 years AGO

Let X be the distance travelled
according to question
time taken by 1st bus= x/45 hrs (1)
time taken by 2nd bus= x/60 hrs (2)
(x/45)-(x/60)=11/2
solving the equation we have
x=990 km
Option 7

Like? Yes | No   

DEBALINA BHATTACHARYYA   8 years AGO

Let the distance is x km.
Time taken by 1st bus is (x/45) hours.
Time taken by 2nd Bus is (x/60) hours.
so,( x/45-x/60)=11/2....(1)
By solving the above equation we get x=990 km

Like? Yes | No   

Akshay patel   8 years AGO

Both the buses have to travel equal distance.
let as assume 1bus travels for x km.
45× X = 60× (X-11/2)
15X= 330
X=22 hours..
hence distance 45×22 = 990km.

Like? Yes | No   

MAMTA KUMARI   8 years AGO

let x time will be taken by secod bus
then x+11/2 time taken by fisrt one
45(x+11/2)=60*x after solving the value of x=22
then distance =45*22=990

Like? Yes | No   

Reshma   8 years AGO

bus 1 speed=45kmph
let time=x
dist=45x
bus 2 speed=60kmph
time=x-(11/2)
dist=60x-30
45x=60x-30
x=22
dist=45*22
distance=990km

Like? Yes | No   

aman aditya   8 years AGO

45*(x+11/2) =60*x
x=16.5
so
distance = 16.5 * 60 = 990

Like? Yes | No   

Akshat Mokashi   8 years AGO

for 1st bus let length of journey=x
Therefore x=45*t1
for second bus x=60*t2
and t2=t1-11/2
so x=60*(t1-11/2)
45t1=60t1-330
t1=22
so x=45*22=990

Like? Yes (1) | No (1)  

prasanna   8 years AGO

speed of A and B is 45 and 60.
assume time of A is x and B is( x-5.5)
(1)--> d= 45x
(2)--> d=60x-330
____________________
15x=330
x=22
Sub in 1
d=990

Like? Yes | No   

ashok ubbathoti   8 years AGO

first bus distance= 45xkm-------------------------- 1
second bus distance= 60(x-11/2)km-------------2
equate 1 and 2
45x = 60(x-11/2)--------------3
value of x will be 22
by solving above equation
length of jourmney is 45x i.e. 45(22) = 990 answer

Like? Yes | No   

Sushmita Ghanty   8 years AGO

let the distance is x
therefore,
x/45 - x/60 = 11/9
x=990

Like? Yes | No   

Karthiga   8 years AGO

We know speed =distance/time
Let x is the time taken by first
Distance=45*x
Distance of second =60*(x-(11/2))
Equting the distance x=22
Hence the distance =speed*time
=45*22
=990

Like? Yes | No   

dprasanthi   8 years AGO

speed=distance/time
60=d/t1
45=d/t2
d/60-d/45=11/2
d=990

Like? Yes | No   

p ananta   8 years AGO

here let distance 'X'
X/45-X/60=11/2
SOLVE THIS WE GET 'X' AS 990

Like? Yes | No   

GOURANGA SUNDAR MANDAL   8 years AGO

let the distance is x km..
so x/45-x/60=11/2...
calculate this equ..we get x=990..
so option 7 is correct answer

Like? Yes | No   

Dinesh kumar sah   8 years AGO

let distance traveled by them is x km.
then A.c.q
time taken by second bus is 11/2 hrs less than first...
ie x/60=x/45-11/2
or, x/45-x/60=11/2
or,4x-3x/180=11/2
or,x=180 into 11 by 2
or, x=990km Ans

Like? Yes | No   

chaitanya   8 years AGO

T1-T2=5.5
LET THE DISTANCE BE D
SO (D)*((1/45)-(1/60))=5.5
SO ON SOLVING D=990

Like? Yes | No   

Pankaj Sonawane   8 years AGO

as speed of 1 st and 2 nd bus is 45 and 60 kmph resp
so let x be the time required to travel whole distance for 1 st bus
now as distance travel by both buses are equal
so
45*x=60*(x-5.5)

X=22 hr
now total length is
45*22
=990

Like? Yes | No   

richabharti   8 years AGO

let distance be x then equ becomes x/45+11/2=x/60...aftr solving the equ x will be 990km which will be total distance.

Like? Yes | No   

Kishore K   8 years AGO

difference between their times is 11/2 hrs
from that solve for X
X/45-X/60=11/2
X=990

Like? Yes | No   

Roshan   8 years AGO

Let us consider distance =d
D/60 - d/45 =11/2
After solving we get
D=990km

Like? Yes | No   

mohd shahnawaz   8 years AGO

since the distance for both buses are same therefore we know s = d/t, and d= s * t; the equation will be 45*t=60*(t-11/2)

we get t= 22;

hence d= 45 * 22 = 990km

Like? Yes | No   

Akshat Sood   8 years AGO

Let the Distance be x
Time be y
V1=45km/h
V2=60km/h

x=45y
x=2y-11/2(y-11/2)
From (1) and (2)
45y=2y-11/2
y=22
Putting value of y in eq1
x=45*22=990km

Like? Yes | No   

akshay   8 years AGO

45=d/t or 60=d/t-11/2 then t=22 hr and put t in any equation then d=990km.

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Ranganath   8 years AGO

Distance remains same for both the buses. So, equating distance covered by both the buses and evaluate time. Later compute the distance.

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Jebas Gnana Prakash E   8 years AGO

Take bus 2
990/60
=16.5

take bus 1
990/45
=22-5.5(Time in hours)
=16.5

Like? Yes | No   

sachin sawant   8 years AGO

Time= distance/speed
d/45-d/60=11/2
d=11/2*180=990
And option 7

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Kaushal Kumar   8 years AGO

Let t time to cover x distance .
Distance x is same for both ,
So 45*t=60*(t-11/2)
t=22h
Now, x=45*22
=990km

Like? Yes | No   

Saleel Kulkarni   8 years AGO

Bus A:
1hr----45km
x hr----h km
Therefore,
x=(h/45)_______1

Bus B:
1hr---60km
(x-5.5)hr---h km
x=(h/60)+5.5_____2

From equation 1 and 2
h/90=5.5
h=990km

Option 7

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Sravanthi Aasa   8 years AGO

t=distance/speed

t1-t2=11/2 hrs

11/2=distance[(1/45)-(1/60)] =distance/180

distance=11*180/2---->distance=990

Like? Yes | No   

kajal   8 years AGO

D/450-d/60=11/2
D/180=11/2
D=11*180/2
D=990

Like? Yes | No   

Vishakha Srivastava   8 years AGO

Distance =speed*time
as distance is constant then D1=D2
let time for 1st journey be x
s1*t1=s2*t2
45*x=60*(x-11/2)
x=22
D1=D2=990 ...by putting the value of time and distance for any of the journeys we will get the same value for distance.

Like? Yes | No   

Aakriti goyal   8 years AGO

distance travelled by bus1= distance travelled by bus2
45*t=60*(t-11/2)
after solving this equation
t=22hr
now d=45*t
d=45*22=990km

Like? Yes | No   

Akshay Nivrutti Raskar   8 years AGO

u=45kmph v= 60kmph
t1=t t2= t-11/2
same distance is covered=x
x=45 * t = 60 * (t-11/2)
t=22
x= 22 * 45 = 990

Like? Yes | No   

rohit yadav   8 years AGO

d/45 - d/60 = 11/2

after solving,

d=990

Like? Yes | No   

Amit Vaswani   8 years AGO

let assume the distance is x
then the time taken by first bus is=x/45
time taken by second bus=x/60
according to the question
x/45-x/60=11/2
x=990

Like? Yes | No   

KHUSHBOO   8 years AGO

Distance(D) =speed * time
time = distance/speed
s1 = 45
s2 = 60
D/s1 - D/s2 = 11/2
D/45 - D/s2 = 11/2
take LCM
(4D-3D)/180 = 11/2
D = 990 km

Like? Yes | No   

purimitla venkatrao   8 years AGO

assume length -l
time is -x
first bus traveled distance is. l= 45*x
second bus travelled distance l=60*(x-11/2)
after solving equations x=22.
distance d =45*22
= 990.

Like? Yes | No (1)  

Maneesh Gupta   8 years AGO

Let the distance be d.
(d/45)=(d/60)+(11/2)
=>15d/(60×45)=11/2
=> d=990 km
Option 7

Like? Yes | No (1)  

Suhail Jahangir   8 years AGO

Let distance be x... Time taken by firsr bus a=x/60..by second bus b=x/45.....
a-b=11/2

Like? Yes | No (1)