Study the diagrams above and answer the questions that follow. 1.1.1. Write down the correct order of the assembly instructions to build the toy car using the letters A, B, C, D, E and F.

By observing the progression of the Lego car assembly in diagrams A, B, C, D, E, and F, the correct sequence is:

• B (Starting with the base plate)
• C (Adding initial blocks to the base)
• F (Adding more blocks to form the main body)
• A (Attaching the top part of the car)
• E (Flipping the assembled blocks and attaching the axles/wheels)
• D (The final assembled car)

The correct order is: $\boxed{\text{B, C, F, A, E, D}}$

The instruction "Flip over the assembled blocks and attach the axels of the wheels" is depicted in the diagram where the base of the car is inverted and wheels are being added.

The letter that fits this instruction is: $\boxed{\text{E}}$

The total number of blocks in the set is calculated by summing the blocks of each color:
Total blocks = $30 \text{ (red)} + 25 \text{ (blue)} + 25 \text{ (yellow)} + 20 \text{ (white)}$

$$\text{Total blocks} = 30 + 25 + 25 + 20 = 100$$

The question "Determine the probability, as a percentage, that the block" is incomplete. To provide a specific probability, the question needs to specify the characteristic of the block being selected (e.g., "that the block is red" or "that the block is blue"). Without this information, a specific probability cannot be determined.