A sock drawer has 2 blue pair, 4 white pair, 4 black pair. What is the probability you can pick out 1 blue , 1 white or 1 black?
You replace each pair after picking.

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?