Pinexam——There is royal road to learning.

## How many 4-letter orderings, where no letters are repeated, can be made using the letters of the word BADGERS?

(A) 4

(B) 7

(C) 256

(D) 840

(E) 2,401

Explanation

In the figure below, side of isosceles triangle NLM lies on the line y + x = 2 in the standard (x,y) coordinate plane, and side is parallel to the x-axis. What is the slope of ?

（A） （B） （C） （D） （E）

Given the system of equations below, x = ?

（A）1 （B） 3 （C） 5 （D） 7 （E） 9

Below is the graph that a specialty automobile manufacturer uses to plot the speed tests done on his new cars. The speed is recorded in units of and is conducted for a period of 9 seconds. A certain order of 3 of the following 6 actions describes the results of the speed test depicted in the graph below. Which order is it?

I. Constant speed for 1 second

II. Constant speed for 3 seconds

III. Speed increase for 4 seconds

IV. Speed increase for 9 seconds

V. Speed decrease for 2 seconds

VI. Speed decrease for 7 seconds

(F) IV, II, VI (G) III, II, V (H) I, III, V (J) III, I, VI (K) V, I, II