Who became the 66th Grandmaster of the

The length of the rectangle is triple its breadth. If the perimeter of the rectangle is 48 m, then find the area (in m²) of the rectangle.

Evaluate the area under y = 2x + 1 between x = 0 and x = 3:

(√196 + √121) × 4 = ?/2

Find the surface area of the smallest cube that can perfectly fit a sphere of volume 288π cm³ inside it.  

If the geometric mean of 4, 18, and (p + 4) is 12, what is the value of '0.4p'?

17, 16, 34, 32, 68, 66

I). 2p ²  – 13p + 21 = 0

II). q ²   – 10q + 24 = 0