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Response from **One square = 1. Sum of painted whole squares = 20. Take the left side not fully painted square, and immediately above it another one, it is a rectangle, it is divided in half by the painted part, so it = 1 square Since it consists of two squares, and is divided in half. It's the same with the right side. Now add 20+1+1=22. The answer is 22.**

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One square=1. Sum of shaded whole squares=20. Take the left side not fully painted square, and immediately above it another one, it is a rectangle, it is divided in half by the painted part, so it=1 square Since it consists of two squares, and is divided in half. It's the same with the right side. Now add 20+1+1=22. The answer is 22.

**0**[+++++]One square=1. Sum of shaded whole squares=20. Take the left side not fully painted square, and immediately above it another one, it is a rectangle, it is divided in half by the painted part, so it=1 square Since it consists of two squares, and is divided in half. It's the same with the right side. Now add 20+1+1=22. The answer is 22.