Rohit walks at 17km/hr and Ruchira cycles at 22km/hr towards each other. What was the distance between them when they started if they meet after 44 minutes?

Since Rohit and Ruchira are moving towards each other, their relative speed is the sum of their individual speeds.
Relative Speed=17km/hr+22km/hr=39km/hr
The time taken to meet is 44 minutes. Convert this time into hours:

Time=
60
44
​
hours=
15
11
​
hours
The initial distance between them is the distance covered at their relative speed:

Distance=Relative Speed×Time
Distance=39×
15
11
​
=
5
13×11
​
=
5
143
​
=28.6km