11. Which of the following DOES NOT belong to the group?
A. \( \frac { 96 } { 120 } \) B. \( \frac { 75 } { 100 } \) C. \( \frac { 24 } { 30 } \) D. \( \frac { 4 } { 5 }\)
12. Which of the following is proportion to \( \frac { 2 } { 6 } \) ?
A. \( \frac { 4 } { 6 } \) B. \( \frac { 3 } { 4 } \) C. \( \frac { 2 } { 3 } \) D. \( \frac { 1 } { 2 }\)
13. What is the value of \( x \) in the proportion \( 8 : 4 = 3 + x : x \) ?
A. \( 3 \) B. \( 4 \) C. \( 6 \) D. \( 8\)
14. What is the ratio of the measure of one angle of a rectangle to the sum of the angles of a rhombus?
A. \( \frac { 1 } { 3 } \) B. \( \frac { 1 } { 4 } \) C. \( \frac { 2 } { 3 } \) D. \( \frac { 5 } { 6 }\)
15. In one of the schools in Mandaue City, the ratio of the number of computers to the number of students is 1:4. How many computers does the school have if it has a population of \( 320 \) ?
A. \( 40 \) B. \( 60 \) C. \( 80 \) D. \( 100\)