SSC JE Civil Engineering 29-Oct-2020 Shift 1 Paper

The pattern followed here is :
Given number - pair :
16 : 170 Similarly,
Option 1) 20 : 299 = 20 : (20 x 15 - 10 ≠ 299)
Option 2) 12 : 81 = 20 : (12 x 7 - 2 ≠ 81)
Option 3) 21 : 325 Option 4) 11 : 67 = (11 x 6 - 1 ≠ 67)
So, other three options are not followed this pattern.
Hence, the correct answer is "21 : 325".