Bob swam 4 kilometers against the current in the same amount of time it took him to swim 12 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would Bob swim if there were no current?

Speed of the bob when there is no current is 4 km/hr

Explanation:

Let the Bob swam v km/hr without the current '

Speed of current is 2 km/hr

So speed in the direct of current = v+2 km/hr

And speed against the direction of current = v-2 km/hr

It is given that Bob swam 4 km against the current in the same time as swam 12 km in direct of current , means time is same

We know that time

So

8 v = 32

v = 4 km/hr

So speed of the bob when there is no current is 4 km/hr

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.