Numerical Appli...

A group of students comprises of $$5$$ boys and $$n$$ girls. If the number of ways, in which a team of $$3$$ students can randomly be selected from this group such that there is at least one boy and at least one girl in each team, is $$1750$$, then $$n$$ is equal to

The number of four -digit numbers strictly grater than $$4321$$ that can be formed using the digits $$0,1,2,3,4,5$$ (repetition of digits is allowed) is:

Let $$ x,y,z$$ be three observations. The mean of these observation is 

The mean of the first $$6$$ odd natural numbers is

Four alternative options are given for each of the following statement . Select the correct  option .
The mean of score $$ 10 , 15 , 12 , 15 , 15  $$ is

Four alternative options are given for each of the following statement . Select the correct  option .
The mean of first three multiples of $$ 5 $$ is

How many ways $$ 5 $$ persons can sit around the round table :

A student got 85, 87 and 83 marks in Mathematics, Physics and Chemistry respectively. Mean of obtained marks.

53, 75, 42, 70 are marks obtained by 4 students is statistics. Arithmetic mean of their marks is:

The mean of $$15, 0, 10, 5$$ will be :