A: Spades are one of the 4 suits in the 52 card deck that is standard
13/52
Multiply by the blue counters over the total counters.
13/52 * 2/5 = 26/260 OR 1/10
1/10 chance of choosing a spade and a blue counter.
B: Red cards are half of the deck
1/2
Multiply by red counter over total
1/2*1/5= 1/10
1/10 chance of choosing a red card and red counter
C: Face cards are Jack, Queen, King. There are 12 in a standard deck
12/52
NOT choosing white means taking blue and red over the total counters
3/5
Multiply
12/52 * 3/5 = 36/260 OR 9/65
9/65 chance of choosing a face card and not choosing a white counter
D: Diamonds make up 1/4 of the deck
1/4
There are no green counters
Probability of choosing a diamond AND a green counter is 0.