Drew has 4 pieces of rope 1 meter long each he cuts each rope into fifths how many fifths will he have after cutting all the ropes

20 fifths

Explanation:
One rope is 1 m. This can be written as 5/5 meters. One rope will be cut into fifths. Assume that the number of fifths is x, therefore:
x * 1/5 = 5/5
x = 5
This means that each rope will be cut into 5 fifth

Now, for four rope, the number of fifths can be calculated as follows:
number of fifths = 5 * 4 = 20 fifths

Hope this helps :)

The events are independent. They are not related at all. This is because you put the card back in, keeping the total number of cards the same. If you did not put the card back, then the second draw (selecting the queen) would be dependent on the first event (selecting the king)

The probability of picking a king is 4/52 = 1/13

If you do not put the card back, then there are 52-1 = 51 cards left and 4 queens, so 4/51 is the probability of getting a queen. Again, this is assuming you do not put the first card back. Putting that first card back would make the queen's probability 4/52 = 1/13, which is the same as selecting that king.