### Question

A. 5

B. 4

C. 3

D. 2

**Answer:** D

**Solution:**

All Numbers in any column have an equal total.

**1st Column**

= [10 + 7]

= 17

**3rd Column**

= [15 + 2]

= 17

**2nd Column**

= [9 + ? + 6]

17 = 15 + ?

**? = 2**

A. 5

B. 4

C. 3

D. 2

**Answer:** D

**Solution:**

All Numbers in any column have an equal total.

**1st Column**

= [10 + 7]

= 17

**3rd Column**

= [15 + 2]

= 17

**2nd Column**

= [9 + ? + 6]

17 = 15 + ?

**? = 2**