Question

find the value of r if P(10,r+1):P(11,r)=30:11
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Answer 1

Find r, if ^(10)P_(r+1):^(11)P_(r)=30:11. ... (a) If .22P r+1:20Pr+2=11:52, find r. (b) If .56Pr+6:54Pr+3= 30800:1, find r. ... r Find the value of, if (i) .^(5)P_. play.