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 : 09 Dec 2022 Shift 4)

Answer 1

The pattern followed here is:

Logic: First number + 10 = Second number and Second number + 20 = Third number.

Let's check each option one by one:

Option 1) (18 –28 –48 )

⇒ 18 + 10 = 28 and 28 + 20 = 48. (Correct)

Option 2) (17 –27 –47 )

⇒ 17 + 10 = 27 and 27 + 20 = 47. (Correct)

Option 3) (15 –25 –49 )

⇒ 15 + 10 = 25 and 25 + 20 = 45 ≠ 49. (Incorrect)

Option 4) (13 –23 –43 )

⇒ 13 + 10 = 23 and 23 + 20 = 43. (Correct)

Hence, the correct answer is "(15 - 25 - 49)".