Q.No.1. lines,l,m and n  are concurrent. Also lines r, l and m are concurrent. Draw a figure and state whether lines r, l, m and n are concurrent or not.

Q.No.2. Lines pqr ar concurrent. Also lines r, s and t are concurrent. Is ti always true that the lines p,q and s will be concurrent? Is it also true for the lines p, q and t?

Here is the answer to your query.
 Two or more lines are said to be concurrent if they pass through a common point i.e., they intersect at a point.
Lines l, m and n are concurrent  (Given)

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