Select the option that is related to the fifth number in the same way as the second number is related to the first number, and the fourth number is related to the third number: 10 : 55 :: 12 : 65 :: 18 : ?

Explanation

Let’s analyze the relationship between each pair of numbers. Step 1: Find the pattern in the first pair (10 : 55) We see that: 10 × 5 + 5 = 50 + 5 = 55 So, the pattern here is: Multiply the first number by 5 and then add 5. Step 2: Check if the same pattern applies to the second pair (12 : 65) Using the same pattern: 12 × 5 + 5 = 60 + 5 = 65 This matches, so the pattern is consistent. Step 3: Apply the same pattern to the third pair (18 : ?) Using the pattern: 18 × 5 + 5 = 90 + 5 = 95 Answer: The number that should replace the question mark is 95.