What will come in place of the question mark (?) in the

In how many ways can 5 boys and 5 girls sit around a circle such that no two boys sit adjacent and no two girls sit adjacent?

Find minimum of x + 9/x for x>0.

Find the equation if a point P(x, y) is equidistant from A(7, 3) and B(-3, 7).

Income of A is twice the income of B. B and A spend 55% and 65% respectively of their incomes. Find the savings of A, if B saves Rs. 18000 in a month.

Determine how many composite numbers exist between 61 and 99?

What term is used to refer readers to a specific source within the same document, such as a table or graph?

A company’s quarterly sales (in lakh units) are:

Q1: 18, Q2: 24, Q3: 21, Q4: 27

124, 160, 224, ?,  468, 664

The probability of a student solving a problem correctly is 0.6. Out of 10 independent attempts, what is the probability that he solves at least 8 ?