When using charles law the units of temperature?

As per Charle's law we can say that if pressure remains constant then

by ideal gas equation we have

here

so

here

So here temperature must be in SI units

So the unit of temperature must be KELVIN (K)

where is the photo and the answer choices?

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min