Kim and jai leave at the same time to travel 25 miles to the beach. Kim drives 9 miles in 12 minutes. jai drives 10 miles in 15 my minutes. if they both continue at the same rate, who will arrive at the beach first?

Distance to cover for reaching the beach = 25 miles

Now

Time taken by Kim to drive a distance of 9 miles = 12 minutes

So

Time taken by Kim to drive a distance of 25 miles = (12/9) * 25 minutes

= 300/9 minutes

= 33.33 minutes

So now we come back to the case of Jai

Time taken by Jai to cover a distance of 10 miles = 15 minutes

Then

Time taken by Jai to travel a distance of 25 miles = (15/10) * 25 minutes

= 375/10 minutes

= 37.5 minutes

So we can see that Kim will reach the beach first as her speed of driving is faster than Jai. I hope the procedure is clear enough for you to understand. Kim will reach the beach first.