Answer:
The missing number is 78
Explanation:
To find the missing number, let's examine the pattern in the given numbers. In this case, it appears that two different operations are applied to the numbers. Let's break down the pattern:
First Operation (Multiplication):
The first number, 64, is multiplied by 4 to get 64 * 4 = 256.
The second number, 68, is multiplied by 3 to get 68 * 3 = 204.
The third number, 21, is multiplied by 2 to get 21 * 2 = 42.
Second Operation (Subtraction):
After the multiplication, the second number (68, 204, 42) is subtracted from the first number (256, 68, 21) to get the third number (21, 14, ?).
Now, apply the same pattern to the options:
A. 7 * 4 = 28
10 * 3 = 30
3 * 2 = 6
B. 4 * 4 = 16
12 * 3 = 36
17 * 2 = 34
C. 8 * 4 = 32
11 * 3 = 33
15 * 2 = 30
D. 6 * 4 = 24
26 * 3 = 78
The correct option following the pattern is option D:
D. 6 * 4 = 24
26 * 3 = 78
So, the missing number is 78.