If it is true that a child comes equipped with his or her own innate timetable for mental growth, one can conclude that?

(1) siblings must have the same timetables
(2) the timetable should be affected by the child‟s diet
(3) you cannot teach a child mathematics until a specific time in his or her development
(4) it would generally take more time to learn a very simple language than a complex
language
(5) the child would have to learn language in order to reason

To answer this question, we need to analyze the information given. The statement suggests that children have their own innate timetable for mental growth. Based on this information, we can draw a few conclusions:

(1) Siblings must have the same timetables: False. Although siblings may inherit similar genetic traits, each child is unique and may develop at their own pace. It is possible for siblings to have different timetables for mental growth.

(2) The timetable should be affected by the child's diet: Uncertain. The given statement does not mention anything about the child's diet affecting their mental growth timetable. While a child's nutrition can impact their overall development, it may not necessarily influence their mental growth timetable directly.

(3) You cannot teach a child mathematics until a specific time in his or her development: False. The given statement does not explicitly state that mathematics or any specific subject can only be taught at a certain time. Children may exhibit different aptitudes and interests, but there is no universal rule regarding timing for teaching mathematics.

(4) It would generally take more time to learn a very simple language than a complex language: False. The given statement focuses on a child's innate timetable for mental growth, not specifically language acquisition. The complexity of a language may influence the time it takes to learn, but it is not directly linked to the child's mental growth timetable.

(5) The child would have to learn language in order to reason: True. Based on the given statement, if a child has their own innate timetable for mental growth, it implies that language development is a necessary step in the process of reasoning. Language acquisition plays a crucial role in a child's cognitive development and ability to reason.

Therefore, the correct conclusion based on the given statement is (5) - the child would have to learn language in order to reason.