Question

There are two rows of numbers in the grid below. The upper row is complete, and in the lower row one number is missing. Find the number that keeps the same pattern as the upper row.

• A. 220
• B. 480
• C. 125
• D. 450

Hint:

Try multiplying the outer numbers and see how that connects to the middle number.

Answer 1

The Correct Option is B

Step 1: Find the pattern in the complete row.
The upper row has 12, 336, 14. Multiplying the first and third numbers gives 12 times 14, which is 168, and doubling 168 gives 336, matching the middle number.

Step 2: State the rule.
The middle number equals twice the product of the first and third numbers.

Step 3: Apply the rule to the lower row.
The lower row has 15, ?, 16. Multiplying 15 by 16 gives 240, and doubling 240 gives 480.

Step 4: Check the other options.
220, 125 and 450 do not equal twice the product of 15 and 16, so they do not fit the rule.

Final Answer:
The missing number follows the double the product rule seen in the upper row. \[ \boxed{480} \]