UPSC Government Jobs Exams Category

Find the total number of ways if six (+) and four (-) are to be placed in a straight line so that no two (- )signs come together?

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UPSC Other Question

A man has 7 relatives , 4 of them are ladies and 3 gentlemen , his wife has 7 relatives and 3 of them are ladies and 4 gentlemen . In how many ways can they invite a dinner party of 3 ladies & 3 gentlemen so that there are 3 of man’s relatives and 3 of wife’s relatives? Find the total number of ways of selecting five letters of the word INDEPENDENT