a boat travels upstream 20km in 6 hrs and 18 km downstream
in 4hrs find the speed of boat in still water
a.1/2kmph b. 7/12kmph c.5kmph d.none of these
- 3 Answers
- 8355 Views
- IBM, Satyam, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / akbar
min speed of boat is 3.3k/hr
max speed is less then 4.5k/hr
all options do not fall in the range so
d.none of these
| Is This Answer Correct ? | 13 Yes | 4 No |
Answer / simone
v_U = 20/6 = v_0 - v_D
v_D = 18/4 = v_0 + v_D
==> 2*v_0 = 20/6+18/4
==> v_0 = 4
| Is This Answer Correct ? | 1 Yes | 2 No |
2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
Raja is twice older than raghav . If Raja was 4 years younger, raghav was 3 years older ther diff. between their ages is 12 years what is the sum of thier ages
10 Answers HCL, TCS,
Number Series 19,24,20,25,21,26,?
Each row of letters or numbers has a rule connecting them. Write the next number or letterin the brackets. 124 , 62 , 60 , 30 , 28 , 14 , (_ _ _)
X2 – (A-3)X +(A+3) = 0 for what value of A the sum of square of roots will be least ?
City A's population is 68000, decreasing at a rate of 80 people per year. City B having population 42000 is increasing at a rate of 120 people per year. In how many years both the cities will have same population?
7 Answers 3i Infotech, Canara Bank, Geodesic, Hewitt, Mu Sigma,
Number Series 7,16,9,15,11,14,?
If PQRST is a parallelogram what it the ratio of triangle PQS & parallelogram PQRST
5 Answers 3i Infotech, Canara Bank, CMC, Deloitte, Geodesic, IBM, IBS, Infogain,
f(X)-f(X-1)=f(X-8) FOR X>5 THEN X=
2. 10 people are there, they are shaking hands together, how many hand shakes possible, if they are in no pair of cyclic sequence.
A fold density is 19 times greater than the water and for copper it is 9 times.At what ratio you can mix gold and copper to get 15 times denser than water.
A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery? 0.75 1 0.5 0.25 Solution: 0.25 can someone plz explain how this answer is calculated?????
English 
