The following picture shows the color preferences of a group of girls. The circle represents the pink color, the triangle represents the blue color and the rectangle represents the white color. Which group of girls like blue or pink color but not the white color?
What will be the next term of the given series?
G - 7, K - 11, 0 - 15, S - 19
If cos3x = 4cos 3 x – 3cosx , Then sec135° = ?