In the following number-pairs, the second number is obtained by applying certain mathematical operations to the first number. In three of the four pairs, the same pattern is applied and hence they form a group. Select the number-pair that DOES NOT belong to this group.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. e.g., 13 – Operations on 13 such as adding/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

To find the number-pair that does not belong to the group, let us analyze the mathematical relationship between the numbers in each pair by calculating the difference between the first number and the second number.

Let us compute the difference for each given pair:
• For the pair 335 - 119:
$335-119=216$

• For the pair 317 - 101:
$317-101=216$

• For the pair 308 - 92:
$308-92=216$

• For the pair 358 - 152:
$358-152=206$

From the calculations above, we can observe that three of the pairs (335 - 119, 317 - 101, and 308 - 92) share the same pattern where the difference between the first number and the second number is exactly 216. The pair 358 - 152 does not follow this pattern as its difference is 206.

Therefore, the number-pair that does not belong to the group is 358 - 152.