Looking at the ping-pong ball toss board below, whats the probability of landing on a gray square? (note the board contains 5 rows of 5 squares.)

Option D. is the correct option.

Step-by-step explanation:

Total number of solution sets n(S) (sample space) = 5×5 = 25

(Since a ping-pong ball can land on any block of the toss board so total number of events which can occur will be = 25)

Now preferred events n(E) = 5

(Since number of grey squares where ping-pong ball can land are = 5)

Therefore probability of landing of ping pong ball on a grey square P(E) =

P(E) =

P(E) =

Therefore, Option D. will be the answer.

b) 36

step-by-step explanation:

18 times 2 is 36

; )

step-by-step explanation: ; )