21 ball numbered 1 to 21. A ballis drawn and then another ball is drawn without replacement? Choose the correct choice from the following options.
A) 9/31	B) 8/45	C) 9/42	D) 8/111	E) 9/113
The probability that first toy shows the even number,   =1021=1021   Since, the toy is not replaced there are now 9 even numbered toys and total 20 toys left.   Hence, probability that second toy shows the even number,   =920=920   Required probability,   =(1021)×(920)=(1021)×(920)   =9/42   9/42
<result>C</result>
21 ball numbered 1 to 21. A ballis drawn and then another ball is drawn without replacement?