Question

1. Two people X and Y are 270 m apart. X starts walking towards Y at a speed of 1.5 m s' and Y
starts walking towards X at a speed of 1.2 m s-1. At what time and at how much distance from
the starting point of X will they meet?
2. Two cars start from the same point with speeds 39 km h-' and 51 km h-! Find the distance
between them after 15 min, if they travel in:
(a) the same direction
(b) the opposite direction
3. A train 190 m long passes a railway platform 250 m long in 22 seconds. Determine:
(a) the speed of the train in km h-1
3902
(b) the time taken by the train to pass a stationary person
(c) the time taken by the train to pass a man running in the direction of the train at a speed of 10 ms.
4. The speed of a motor boat in still water is 17.5 km h-!. If the speed of the stream is 5.5 km h',
determine:
(a) the time taken by the boat to go 103.5 km downstream
(b) the time taken by the boat to go 39 km upstream
yoni
5. The speed of a boat in still water is 13 km h-!. If the boat travels 84.7 km downstream in
5.5 hours, find the speed of the stream.​

Answer 1

Step-by-step explanation:

Let they meet after x h.

Then, according to the question,

3x + 4x =17.5

= 7x = 17.5

x=17.57=2.5h

So, they meet 2.5 h after 8 : 00 am.

It means they meet at 10 : 30 am.

Part of solved Time and Distance questions and answers : >> Aptitude >> Time and Distance

Step-by-step explanation: