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
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 |
please send me previous year solved papers of clerical aptitude of clerk grade bank exam
2,1,1,1.5,3,7.5, ?
there is a safe with a 5 digit No. The 4th digit is 4 greater than second digit, while 3rd digit is 3 less than 2nd digit. The 1st digit is thrice the last digit. There are 3 pairs whose sum is 11. Find the number. Ans) 65292.
A lorry starts from Bangalore to Mysore at 6.00 A.M,7.00am.8.00 am.....10 pm. Similarly one another starts from Mysore to Bangalore at 6.00 am,7.00 am, 8.00 am.....10.00pm. A lorry takes 9 hours to travel from Bangalore to Mysore and vice versa. A lorry which had started at 6.00pm will cross how many lorries.
In a queue, a man is standing at the position 10th from the front and 15th from behind. How many persons are standing in the queue?
hi...i have got selected for United bank po interview.can anyboby suggest me how to prepare for interview.r there any books for po interview?i am asking because..this s my 1 st bank interview...pls send me interview material if u have any ..my mail id=pruthi_tarun@yahoo.co.in....thank u
there are two categories of persons in ratio a:b = 2:3. A type earns 2.5 dollars/hr and b type 1 dollar/hr total money earned by both is 24dollars. Then what is the total number of persons
The First Prime Minister of Sri lanka___________
5. When 3 dice are simultaneously thrown, which of the following would be obtained?
3978 + 112 x 2 = ? ÷ 2 (a)8180 (b)2101 (c)4090 (d)8404 (e)None of these
There N stations on a railroad. After adding X stations on the rail route 46 additional tickets have to be printed. Find N and X.
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min.Tell the speed of river.