Question

kiran and clare live 24 mile away from each other along a rail trail. One Saturday the two friends started walking toward each other along a trail at 8:00 am with a plan to have a picnic when they meet if kiran walks 3 miles per hour while clare walks 3.4 miles per hour. At what time will the two friends meet and have their picnic

Answer 1

Answer:

$11:45\ am$

Step-by-step explanation:

Total distance between Kiran and Clare is 24 miles. They started walking at 8.00 am.

Speed of Kiran is 3 miles/hr and speed of Clare is 3.4 miles/hr.

So the relative speed of them is,

$=3+3.4=6.4$ miles/hr

Both the speed are added as they moving in opposite direction.

We know that,

$\text{Relative speed}=\dfrac{\text{Relative distance}}{\text{Time}}$

i.e $\text{Time}=\dfrac{\text{Relative distance}}{\text{Relative speed}}$

Putting the values,

$t=\dfrac{24}{6.4}=3.75\ hr=3\ hr\ 45\ min$

As they started at 8.00 am, so the time at which will meet will be,

$=8+3\ hr\ 45\ min=11:45$