Select the odd group of numbers. (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 /subtracting /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)

Question

Question

This question was previously asked in

SSC CGL 2022 Tier-I Official Paper (Held On : 01 Dec 2022 Shift 1)

Answer 1

Logic :

So,

7 = 3√343

7 = 7 (LHS = RHS)

And,

343 - 331 = 12

6 = 3√216

6 = 6 (LHS = RHS)

And,

216 - 206 = 10

5 = 3√125

5 = 5 (LHS = RHS)

And,

125 - 115 = 10

3 = 3√27

3 = 3 (LHS = RHS)

And,

27 - 17 = 10

Here, only in option - (1) the difference of the second number and third number is 12 instead of 10. Thus, it is the odd one out.

Hence, "Option - (1)" is the correct answer.