In each row, the third number follows the same rule from the first two numbers. Row 1: 3, 4, 11. Row 2: 5, 2, 9. Row 3: 6, 3, ?. What is the missing number?
Answer and explanation
Correct answer: C. 17
- Step 1: Check Row 1: 3 x 4 - 1 = 11.
- Step 2: Check Row 2: 5 x 2 - 1 = 9.
- Step 3: Row 3: 6 x 3 - 1 = 17.
Answer
17.
Why not the others: 18 forgets to subtract 1, 19 adds 1 instead and 9 is 6 + 3.
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