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The feed to a two-column fractionating syatem in 30,000kgh1 of a mbxture containing 50% benzene (B), 30% toluene ('T) and 20% xylene (X) by mass, as shown bolow. The feed is introduced into column 1 and results in an overhead consisting of 95%,B,3% T and 2%X. The bottoms from column 1 are fed to the second column resulting in an overhead from column 2 containing 3% B, 95%T and 2%,X. Assume that 52% of the feed appears as overbead in the first column and that 75% of the benzene fed to the second columa appears as overhead. Calculate the composition and flow of the bottoms stream from the second column. (25 marks)