One train leaves Los Angeles at 15mph heading for New York.
Another train leaves from New York at 20mph heading for Los
Angeles on the same track. If a bird, flying at 25mph,
leaves from Los Angeles at the same time as the train and
flies back and forth between the two trains until they
collide, how far will the bird have traveled?
Answer Posted / charkilah
There are two answers. (1) The total distance flown by the
bird back and forth, and (2) the distance from where the
bird left and where the trains collide. It is difficult to
guess from the wording which answer they are asking for.
Either way the answer is fairly straightforward.
1). The distance from L.A. when the trains collide is:
15/(15+20) = 3/7D where D is distance from LA to NY
2). The time it takes to get to this point can be
multiplied times the speed of the bird to get total
distance.
(3/7D)/15 X 25 = 5/7D
Good luck in your interview
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
A cylinder is inserted in a sphere d/h = 2/3. Find the surface area of the cylinder ?
In a mixture R is two parts, S is one part . In order to mixture how much R is to be added.
A sequence is given. You should find out error & write correct 1 2 5 10 13 26 29 48.
10 : 4 seconds :: ? : 6 minutes
If A can copy 50 pages in 10 hours and A and B together can copy 70 pages in 10 hours, how much time does B takes to copy 26 pages?
In a class total 34 students, 16 are have a brother, 15 are have sisters, 9 students don't have either brothers or sisters.Find the number of students having both brother and sisters.
f(X)= 2X-1 + f(X-1) if X is not equal to zero and if f(X=0)=0, If f(X)=4f(X-1) then the value of X=?
In a group of 15,7 have studied Latin, 8 have studied Greek, and 3 have not studied either.How many of these studied both Latin and Greek
falling height is proportional to square of the time. one object falls 64cm in 2sec than in 6sec from how much height the object will fall.
I HAVE APPEARED FOR ALLAHABAD BANK ON 21-02-10, I WANT TO KNOW THE SECTIONAL CUT OFF'S FOR CATEGORY.
total balls are z, the number of red balls is n and the remaining are blak balls,then the % of black balls equal to ?
If a bat costs Rs.30 in the year 1999 and Rs.250 in the year 2000.What is the percent increase in price?
A question on "set" theory.it was given that less than 30 persons in class.
Two distinct no's are taken from 1,2,3,4......28. Find the probability that their sum is less than 13
Find the total number of squares in 1/4 of chess board ?