ABC and BDE are two equilateral triangles such the D is the mid-point of BC. Ratio of the areas of triangles ABC and ADE is____.

The value of

OR

The Value of (1+tan²θ) (1–sin θ) (1+sin θ) = _____.

A die is thrown once. What is probability of getting a number less than 3?

OR

If the probability of winning a game is 0.07, what is the probability of losing it?

If the mean of the first n natural number is 15, then find n.