if u r traveling from Mumbai to banglore and return
back .To find the speed of the car which of the following r
needed.
a)the distance between them.
b)time taken
c)avg speed towards Mumbai and the avg speed towards
banglore.
Choices:
1)a only. 2)a and b 3) a,b,c 4)b only 5) c only ( ans not
in order)

Answer Posted / animesh roy

the answer is 5)c only.
here is an example.
let the avg speed are 20 and 40 accordingly and dist
between them is x.
so total time required (x/20+x/40).and the total dist
covered is 2x.
so avg speed is 2x/(x/40+x/20)=80/3.

Is This Answer Correct ?    6 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A chain is broken into three pieces of equal lengths containing 3 links each. It is taken to a blacksmith to join into a single continuous one. How many links are to to be opened to make it ?

799


f(x,y) =x**2 -y**2 then the value of f(4,(f(1,2) is

769


A 2D array is declared as A[9,7] and each element requires 2 byte.If A[ 1,1 ] is stored in 3000. Find the memory of A[8,5] ?

957


32 people playing table tennis. how many matches to determine the winner.

670


how to learn aptitude quickly

1905






The time showed by the clock at a moment is 8 am then the respective time of after and before 42896 hours is :

1254


In a club there are male and female members. If 15 female quit then the number of males will become double the number of males. If 45 males quit no. of female becomes five times the number of males. Find the number of females.

810


Bactria double every 3 mins. It is N in 1 hour, when was it N/4?

789


Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is

981


Differences you see in private and public bank?

1801


inept : clever :: languid :

709


Find the next series number : 21, 463, 687, 238, 1134, ----

644


debentures book building

1732


In the series 0, 3, 8, 15,__ What is the next number?

699


Ajay can build a house in 16 days and Barry can do the same job in 12 days. With help of Chintu, they did the job in 4 days only. How many days Chintu can do the job?

958