We have to assume that he does all this with his eyes closed, and so his selections are completely random.

-- There are 26 socks in the drawer all together.

-- 10 of them are black or brown.

-- So the probability that he pulls out

either a black sock or a brown one is

10/26 = 5/13 = about 38.5% .

-- He puts it back, so there are still 26 socks in the drawer.

-- 16 of them are white.

-- So now, the probability of pulling out a white one is

16/26 = 8/13 = about 61.5% .

The probability of the whole process happening

just exactly as you described it is

(10/26) x (16/26)

= (5/13) x (8/13)

= (40) / (13²) = 40/169 = about **23.7% **.

Quick check:

We got 38.5% the first time, and 61.5% the second time.

(38.5%) x (61.5%)

= (0.385 x 0.615)

= 0.2367 ==> 23.7% <== yay! that's good enough for me

**Answer:**

6

**Step-by-step explanation:**

2x3=6

**Answer:**

D.

**Step-by-step explanation:**

Momentum(p) is Mass(m) times Velocity(v) or p = mv

The results of the calculations are attached. 0.4 kg at 2 m/s has the most momentum: 0.8 kg*m/s