(a) A restaurant offers a fixed priced menu. A meal for an adult costs \$9.99 and a meal for a child costs \$6.99. If there are 6 or more people at a table, a 15\% discount is applied to the total cost of the order. Write an algorithm in pseudocode to: - input the number of adults and the number of children at a table - calculate the total cost of the order with the discount, if this applies - output the final cost of the order. (b) The final cost of the order after the discount may have more than 2 decimal places. Write a pseudocode statement to set the final cost of the order to 2 decimal places. You do not need to rewrite the whole algorithm. \_\_\_\_ \_\_\_\_ (c)The restaurant offers a discount on a meal if the person ordering is either a student or is 65 years or older. The discount $(\mathbf{X}=1)$ can only be given if the amount of the order is \$20.00 or over. | rule A | a student | 0 | | :--- | :--- | :--- | | | not a student | 1 | | rule B | under 65 years old | 0 | | | 65 years or older | 1 | | rule C | under \$20.00 | 0 | | | \$20.00 or over | 1 | (i) Write the logic expression for this problem. \_\_\_\_ [2] (ii) Draw a logic circuit for this logic expression. Each logic gate must have a maximum of two inputs. Do not simplify this logic expression. ![](https://files.sudostudy.com/c4d965ad8539e2315879581be5759cee1bb00ad69a2c7641203920f043cc379b.jpg?height=702&width=1189&top_left_y=1283&top_left_x=434) [3] (d)Draw the NAND logic gate symbol and complete the truth table for it. NAND logic gate symbol: ![](https://files.sudostudy.com/cdb8cc9fb99fdd6a5121309830a7848455dc8a4253d70bd2653b8701aa88d326.jpg?height=303&width=301&top_left_y=2263&top_left_x=330) Truth table: | A | B | X | | :--- | :--- | :--- | | 0 | 0 | | | 0 | 1 | | | 1 | 0 | | | 1 | 1 | | [2]

2025 - O/N - 0478/21 | Q4

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(a) A restaurant offers a fixed priced menu. A meal for a...