0 votes 0 votes atul_21 asked Dec 21, 2017 atul_21 618 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply atul_21 commented Dec 21, 2017 reply Follow Share In P(B), why are they not doing (1/6 * 3/4 ) + (5/6 *1/4) ?????? 0 votes 0 votes hs_yadav commented Dec 21, 2017 reply Follow Share above solution... P(B) =1/6 *3/4 + 1/6 * 1/4 ....this is not vallid.... 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes where I went wrong ??????? atul_21 answered Dec 21, 2017 atul_21 comment Share Follow See all 7 Comments See all 7 7 Comments reply Show 4 previous comments hs_yadav commented Dec 21, 2017 reply Follow Share https://gmatclub.com/forum/a-man-is-known-to-speak-truth-3-out-of-4-times-he-throws-68835.html see abhijit sen...comment in above link... here is solution.... P(A)= 1/6*3/4+5/6*1/4*1/5 ....now it will give 3/4 ...P(A) probability of reporting 6 0 votes 0 votes atul_21 commented Dec 21, 2017 reply Follow Share Why 1/5 ???? 0 votes 0 votes hs_yadav commented Dec 21, 2017 reply Follow Share 5/6(probability of not 6) /(1,2,3,4,5) * 1/4(probability of telling lie)(means reporting for any of 1,2,3,4,5,6 excepting comming face on die * 1/5( choosing 6 of five).... :) 0 votes 0 votes Please log in or register to add a comment.
