A is twice as fast as B and B is thrice as fast as C is. The journey covered by C in 42 minute will

sai   10 years AGO

c = 42 minutes
B= 42/3=14 minutes
A= 14/2 =7 minutes

Like? Yes (26) | No (6)  

K.ARun   10 years AGO

speed of A,B and C is X,Y and Z km/hr resp.
x=3y=2(3z) = 6z
Dist covrd by C in 42mins = 42z
Time Taken by A=42z/x
we know x=6z
so A=42z/6z
Option 2) A will cover it in 7minute

Like? Yes (14) | No (4)  

Yekollu Muneeswar   10 years AGO

given,

A=B/2
B=C/3
C TAKE 42MIN
THEN B=C/3=42/3=14
A=B/2=14/2=7MIN
>> A TAKES 7 MIN

Like? Yes (9) | No (1)  

P.Pandeeswari   10 years AGO

If the speed of a,b & c are A,B & C respectively

Given A=B/2 & B=C/3 ,

So A=C/6, If time taken by c is 42 min.,

then by a= 42/6= 7min.

ans is

option 2) 7min

Like? Yes (7) | No (1)  

Rahul Rathod   10 years AGO

B=2A
C=3B
so C=6A
hence A=C/6
Speed of C=42
hence Answer is 7 minutes

Like? Yes (6) | No (3)  

ranjithreddy   10 years AGO

6times as c

Like? Yes (4) | No (1)  

Anant   10 years AGO

Since A is 6 times as fast as C , he will cover the same distance in 1/6th of the time C takes .

Like? Yes (3) | No   

priyanka    10 years AGO

if a=6y
b=3y
c=y
if c= 42 min
a=42/6=7 min

Like? Yes (2) | No   

Shivam Saluja   10 years AGO

C= x m/sec
B= 3x m/sec
A = 6x m/sec

C distance= 42*60*x m
A time = (42*60*x)/(6x*60) sec

Like? Yes (3) | No (1)  

chanukya reddy   10 years AGO

42/6=7

Like? Yes (4) | No (2)  

himasnhu joshi   10 years AGO

2a=b
3b=c thus a=7

Like? Yes (1) | No   

sreenivasa reddy   10 years AGO

c=let " X" then
B=3X
A=6X time to take A=42/6=7 Answer=7

Like? Yes (1) | No   

bhavani   10 years AGO

A speed= 2*speed of B
B speed= 3*speed of c
A speed= 6*speed of c
42/6=7

Like? Yes (1) | No   

Azhar Syed   10 years AGO

A=2B,
B=3C,
hence A=6C
if C covers journey in 42 min A should do it in 42/6 i.e 7min

Like? Yes (1) | No (1)  

Rahul   10 years AGO

distance by c=d
then by b=3d
a=6d hence
42/6

Like? Yes (2) | No (2)  

A.P.Singh   10 years AGO

A (6c) is twice as fast as B and B (3) is thrice as fast as C (c) is. The journey covered by C in 42 minute will be covered by A in 42/6=7 mins

Like? Yes (2) | No (2)  

Udhaya kumar   10 years AGO

A=2B
B=3C
IF C = 42 THEN B = 42/3 = 14
A = 14/2 = 7..............

Like? Yes (1) | No (2)  

Md.Sultan Khichi   10 years AGO

C covers the journey in 42 mins.
So B covers it in=42/3=14 mins
So A covers it in =14/2=7 mins
Ans. Ob. 2

Like? Yes (1) | No (2)  

ravi prakash   10 years AGO

A= 42/6
= 7minutes.

Like? Yes (1) | No (2)  

Anand   10 years AGO

Let the speed of A, B and C be x, y and z km/hr

x = 3y = 3(2z) = 6z

Distance covered by C in 42 minutes = 42z

Time taken by A = 42z/x = 42z/(6z) = 7 minutes

A will take 7 minutes

Like? Yes (1) | No (2)  

Devendra Marghade   10 years AGO

Time taken to cover the same distance by A= B/2 & B=C/3
So A=C/6 =42/6=7 minutes

Like? Yes (1) | No (2)  

CHANDAN KUMAR   10 years AGO

tb/tc=1/3
tb=tc/3=14
ta/tb=1/2
ta=tb/2=7

Like? Yes (1) | No (2)  

sravani   10 years AGO

Let speed of C be x...
B will be 3x
A will be 6x
x-----------42mins
6x----------- ?
7mins..

Like? Yes (1) | No (2)  

kamal   10 years AGO

S is inveresely preportional to T so,
let speed of C is S.
Speed of B is 3s
speed of is 6S
S1/S2=T2/T1
S/6S=T/42
T=42/6= 7 minutes

option 2 is right

Like? Yes (2) | No (3)  

Abhishek Porwal   10 years AGO

Given
A=2B , B=3C
and C=42
=> A=2(3C)
=>A=6C
So if C covers the distance in 42 minutes then A will cover the distance in 7 minutes.

Like? Yes (1) | No (2)  

Sundar Kumar   10 years AGO

Let the speed of A, B and C be x, y and z km/hr

x = 3y = 3(2z) = 6z

Distance covered by C in 42 minutes = 42z

Time taken by A = 42z/x = 42z/(6z) = 7 minutes

A will take 7 minutes

Answer: Option:2)

Like? Yes (1) | No (2)  

Anubhav jain   10 years AGO

7

Like? Yes (1) | No (2)  

prem   10 years AGO

speed of a = 2* speedof b
and speed of b=3*speed of c
tc=42 min
speed=dist/time
t=dist/speed
tb=42/3=14
ta=14/2=7
hence option 2

Like? Yes (1) | No (2)  

Rishikesh Ranjan   10 years AGO

42/6

Like? Yes (1) | No (2)  

arun   10 years AGO

Given
A = 2B
B = 3C
So A= 6C
A is 6 times faster than C
The journey covered by C in 42 minute will be covered by A is =42/6 = 7

Like? Yes (1) | No (2)  

vedhasree   10 years AGO

time taken by c=42 min
time taken by B=42/3=14 min
time taken by A=14/2=7 min

Like? Yes (1) | No (2)  

PAWAN KUMAR   10 years AGO

We have, a = 2b , b = 3c
i.e, a = 2b = 2*3c = 6c
time taken by c= 42 min
So, time taken by a = 42/6 = 7 min. Ans.

Like? Yes (2) | No (3)  

poojasaisri   10 years AGO

a=2b
b=3c
=>a=6c
distance covered by a=distance covered by c
t*60*6s=s*42*60
t*6=42
t=7minutes

Like? Yes (1) | No (2)  

thota mahendar   10 years AGO

a covered in 42/(3*2)

Like? Yes (1) | No (2)  

sanjeev kumar   10 years AGO

ans 2

Like? Yes (1) | No (2)  

Nitesh   10 years AGO

C covered the journey in 42 minutes
where as B's speed is 3B=C
so B covered the journey in 14 minutes
then 2A=B
A covered the journey in 7 minutes

Like? Yes (1) | No (2)  

Arul Shaijan   10 years AGO

A=2B, B=3C
so, A=6C,

Hence time of A=1/6(C's time) i.e, 1/6*(42).

7mins

Like? Yes (2) | No (3)  

Arijit Acharyya   10 years AGO

Speed ratio A:B=2:1 ; B:C=3:1

distance covered by C = S*T = S*42 = 42S
to cover 42S B will take 42S/3S = 14 minute
and A will take 14/2 = 7 minute

Like? Yes (1) | No (2)  

Manasa Kotha   10 years AGO

a=2b and b=3c
so a=6c means a is 6 times fast as c so time taken =42/6=7

Like? Yes (1) | No (3)