1.

Six points are marked on a straight line and five points are marked on another line which is parallel to the first line.How many straight lines, including the first two, can be formed with these points?​

Answer»

POINTS on the FIRST line =6

Points on the second line =5

To form new lines , we NEED one point each from each line  

Selection/number of lines  

6*C*1  .  5*C*1=30

Total number of lines including the old lines =30+2=32



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