# A square and two rectangles in a round hole

**Calculus**Level 5

\[\lceil \left(1000\frac{C}{S} \right) \rceil\]

Note: this problem was inspired by one of Sir Brian Charlesworth: Rectangular Pegs in a Round Hole

Assume:

Use of a computer software for ARITHMETIC is allowed.

\(\lceil x \rceil\) means the least possible integer greater than or equal to x

Exg: \(\lceil 4.1 \rceil=5\)