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Q 2325491361.     I. In how many ways 22 identical red coins and 18 identical blue coins can be arranged in a row so that no two blue coins are together?
II. `text()^23C_18 xx 2 !`
IBPS-PO 2017 Mock Mains
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)