A man travels from A to B at 4 mph over a certain journey
and returns over the same route to A, at 5 mph. What is his
average speed for the journey?
- 13 Answers
- 22967 Views
- HCL, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / suresh
let, x be man travel from A to B and
Y be man travel from B to A then
Average speed is (2XY)/(X+Y)
therefore ans = (2*4*5)/(4+5)
= 4.44mph
| Is This Answer Correct ? | 93 Yes | 4 No |
Answer / david
Imagine that the distance from A to B is 20 miles (lowest
common denominator of 4 and 5)
That means on the way there it took him 5 hours (20/4)
On the way back it took him 4 hours (20/5)
So in total it took him 9 hours (5+4) to travel 40 miles (20
miles each way).
So 40/9 = 4.444mph
| Is This Answer Correct ? | 26 Yes | 1 No |
Answer / guest
avg speed =2xy/x+y
avg speed=2*4*5/(4+5)
=40/9=4.444mph
| Is This Answer Correct ? | 13 Yes | 0 No |
Answer / kishore jangid
Average Speed:
(2xy)/(x+y)
Therefore
=(2*4*5)/(4+5)
=(40)/(9)
=4.4444...
| Is This Answer Correct ? | 6 Yes | 0 No |
Answer / raviraj mishra
FORMULA FOR AVG. SPEED WHEN DISTANCE TRAVELLED IN TWO
INTERVALS IS SAME , IS GIVEN BY = 2*A*B/A+B
, A=4mph & B=5MPH SO ANSWER=4.44mph
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / bala
man A to B = 4mph
man B to A = 5mph
(4/100=4%, 5/100=5%)
average speed =4mph+5mph/200*100
=4.5mph.
| Is This Answer Correct ? | 2 Yes | 1 No |
analogy: cell: tissue::atom:?
Eon asked 60 students whether they listen to two popular radio stations, WROK and WRAP. He found that 23 listen to WROK, 18 listen to WRAP, and 8 listen to both. How many students in Robert's survey listen to a) WROK but not WRAP b) WRAP but not WROK c) neither WROK nor WRAP
Why 3 comes after 2 And 2 comes after 1 ?
what is income tax
The numbers A, B and C make a sum of 98. If the ratio A:B is 2:3 and that B:C is 5:8, the third number would be
2.) The payment P(n) that a person receives is a function of the day n. If P(n) = 2 × P(n - 1) and the person receives Rs.12 on the day two, then what is the total payment received by a person for 10 days starting from the day one
How many 1's are there in the binary form of 8*1024 + 3*64 + 3
0 Answers 3i Infotech, Canara Bank, EDS,
consider expression 'ab' . what happens when 'a' is divided by 'c' &'b' is multiplied by 'c'.
f 9 examiners can examine a certain number of answer books in 12 days , working 5 hours a day ; for how many hours a day would four examiners have to work in order to examine twice the number of answer books in 30 days ?
4 Answers Banking, Sutherland,
find missing no 15 13 12 12 11 11 ?
what is zip code?
There are 19 red balls and one black ball . Ten balls are put in one jar and the remaining 10 are put in another jar. what is the possibility that the black in the right jar.
English 
