In a stack of boards at a lumber yard, the 20th board counting from the top of the stack is immediately below the 16th board counting from the bottom of the stack. How many boards are in the stack? A. 38B. 36C. 35D. 34E. 32

B 36

Step-by-step explanation:

Number of boards from the top of the stack to the 20th board is 20

Number of boards from the bottom of the stack to the 16th board which is immediately below the 20th board is 16

Number of boards in the stack = 20 + 16 = 36