Three of the following four options are alike in a certain way and thus form a group. Which is the option that does NOT belong to that group? (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /deleting /multiplying etc., to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed).

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Accepted Answer

Let's analyze each option to find the common pattern:

Option 1: 2 – 4 – 8
If we multiply the first two numbers: 2 × 4 = 8 (which is the third number).

Option 2: 2 – 2 – 4
2 × 2 = 4 (which is the third number).

Option 3: 3 – 2 – 5
3 × 2 = 6 (not 5). 3 + 2 = 5 (which is the third number).

Option 4: 1 – 3 – 3
1 × 3 = 3 (which is the third number).

So, in options 1, 2, and 4, the third number is the product of the first two numbers. In option 3, the third number is the sum of the first two numbers, not the product.

Therefore, option 3 (3 – 2 – 5) does NOT belong to the group.

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