Mathematics Tes...

How many numbers can be possible by using digits 3, 4, 5, 6, 7, 8 which are greater than 750000, if repetition is not allowed :-

The number of ways of selecting a committee of 4 women and 5 men from 10 women and 9 men, if Mrs. A refuses to serve on the committee if Mr. B is a member of the committee, is :-

Number of ways in which 5 alike red balls and 6 alike green balls can be arranged so that no two red balls are together, is-

The 60 permutations of ALLEN are arranged in dictionary order, as if each were on ordinary five letter word. The last letter of word which occurs at 23^rd position is :-

A man invites a party to (m + n) friends to dinner and places m at one particular round table and n at another. The number of ways of arranging the guest are :-

The maximum number of intersection points of five line and four circles is :-

Number of positive integral solution of the equation xyz = 90 is equal to :-

The coefficient of t⁵⁰ in

(1 + t²)²⁵ (1 + t²⁵) (1 + t⁴⁰) (1 + t⁴⁵) (1 + t⁴⁷) is