Juan Has a Mental Age of 8 and an IQ

question 256

Multiple Choice

Juan has a mental age of 8 and an IQ of 80. How old is Juan?

• A)10
• B)5
• C)8
• D)12
• E)cannot tell from this information

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Definitions:

Silicate Minerals

A group of minerals that contain silicon and oxygen, usually with other metals, forming the largest and most important class of minerals on Earth.

Double Chains

Structures consisting of two parallel chains of atoms or molecules bonded together, often found in silicate minerals.

Silicon Tetrahedron

A structural unit in silicate minerals, consisting of a central silicon atom covalently bonded to four oxygen atoms at the corners of a tetrahedron.

Silicate Minerals

Minerals that contain silicon and oxygen, and possibly other elements, constituting the largest family of minerals.