self Maths Puzzle

) In how many ways can six men and six women be seated in a row, such that two particular women are never together, whereas two particular men are always together?

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i think no such combination will there
12 years agoHelpfull: Yes(1) No(1)

2 ways bcoz
12 years agoHelpfull: Yes(1) No(1)

self Other Question

if two sides of a triangle are 4cm and 20cm and the third side is also an integer then how many such triangles are possible??? Nirav and Siddharth borrowed a tractor for 23 days. Nirav ploughed 12 acres per day for a certain number of days and then Siddharth used it to plough 15 acres per day for the remaining days. If they paid RS.3,000 and RS.2,000 respectively, for how many days did Nirav use the tractor? Assume that they share the total rent in proportion to the land that they plough
a)12 b) 15 c) 8 d) 16