Select the set in which the numbers are related in the same way as the numbers of the following sets. (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/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.)

(21, 63, 378)

(23, 69, 414)

(21, 63, 378)

(23, 69, 414)

​Logic: 1st Number × 3 = 2nd and 2nd Number × 6 = 3rd Number

21 × 3 = 63; 63 × 6 = 378

23 × 3 = 69; 69 × 6 = 414

(a) (26, 81, 486) = 26 × 3 = 78 ≠ 81; 81 × 6 = 486

(b) (27, 81, 486) = 27 × 3 = 81; 81 × 6 = 486 (Follow)

(c) (27, 80, 486) = 27 × 3 = 81 ≠ 80 ; 80 × 6 = 480 ≠  486

(d) (27, 81, 476) = 27 × 3 = 81; 81 × 6 = 486 ≠ 476

So, only option (b) follows the same logic.

Thus, the correct option is: (b)​​