PUZZLE 09

1. For what positive integer values of n, does the expression n^2 + 5n represent a perfect square? 1. Answer:4

PUZZLE 85

1. What is rule of three? 2. Find the number of ways of arraning 6 persons in a circular ring

PUZZLE 80

1. Find the number of distinct roots of x^3 – x^2 = 0? 2. Find the number of lines of

PUZZLE 69

1. If 24 and 25 are side lengths of one of the smaller side and hypotenuse of a right triangle

PUZZLE 65

1. Find the value of h such that 8^(2 – 3h) = 32 ? 2. Fnd all real possible values