A man covers 27 kms in 9 hrs and return home with a speed
of 5 km/hr.what is his average speed for entire journey?
Answers were Sorted based on User's Feedback
Answer / jayanthi
if he covers 27km in 9hrs means his speed is 3kmphr.for
return journey his speed is given as 5kmphr.so average is
(2xy/(x+y))i.e.2(3)(5)/(3+5)=3.75kmphr
Is This Answer Correct ? | 18 Yes | 6 No |
Answer / k.k
27 kms in 9 hrs means 3kms/ hrs then 5kms/hrs the average speed is 3+5=8/2=4 kms/hrs
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / sank
there is a difference between the terms average speed and average of speeds
ans posted by Jayanti is average speed(toatal dis./total time)
while post of Janu calculates average of speed
Is This Answer Correct ? | 1 Yes | 3 No |
4 thieves rob a bakery of the breadone after the other. each thief takes half of what is present ,& half a bread.if at the end 3 bread remains,what is the no of bread that was present initiallly?
What are Active X controls
There are two water tanks A and B, A is much smaller than B. While water fills at the rate of 1 liter every hour in A, it gets filled up like, 10, 20, 40,80, 160…..in tank B. 1/8 th of the tank B is filled in 22 hours. What is the time to fill the tank fully?
There are 5 red shoes, 4 green shoes. If one drasw randomly a shoe what is the probability of getting redshoe is
What is the least number of squares marbles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad?
(103.7 x 101.3)2 = 10? (a) 6 (b) 7 (c) 10 (d) 3 (e) None of these
Tarun invited 750 persons to a party. Every person that came to the party, came by a car such that exactly six persons came in each of the three different cars and exactly seven persons came in each of the remaining cars. At the party, when every person including Tarun was seated in a group of eleven, one group fell short by four persons. If maximum possible number of persons came to the party, then out of the persons who were invited by Tarun, how many persons did not come to the party?
4 Answers College School Exams Tests, Microsoft, TCS,
Which of the following does multithreading allow? A. several transactions that require the same program to use one copy of the program. B. many tasks to be allocated to the terminal. C. an audit trail of all files records from all files updated by a particular application
epaulette : shoulder :: tiara :
Instead of multiplying a number by 7, the number is divided by 7. What is the percentage of error obtained?
0 Answers 3i Infotech, Amazon, Canara Bank,
One ball was dropped from 8ft height and every time it goes half of the height. How much distance it will travell before coming to rest.
Two trains move in the same direction at 50 kmph and 32 kmph respectively. A man in the slower train observes the 15 seconds elapse before the faster train completely passes by him.