Problem Solving questions are multiple-choice questions with five answer choice options. You must select the one best answer choice.

## Practice questions

**One plant grew 6 inches while a second plant grew 250 percent more than the first plant grew. How much, in inches, did the second plant grow?****A.**6**B.**8**C.**12**D.**15**E.**21**The number of squares is 4 times the number of circles, and the number of circles is twice the number of triangles. What is the ratio of the number of squares to the number of triangles?****A.**8:1**B.**4:1**C.**1:2**D.**1:4**E.**1:8

## Answers and explanations

**The correct answer is E.**The second plant grew 6 inches plus 250 percent of 6 inches, which is 6 in + 250% (6 in) = 6 in + 2.5 (6 in) + 15 in = 21 in.

**The correct answer is A.**Let

*n*= the number of triangles; then 2*n*= the number of circles; and 4 (2*n*) = 8*n*= the number of squares. The ratio of the number of squares to the number of triangles is