DSSSB TGT CS Mock 03 – Question 019

In a certain code, ‘MONITOR’ is coded as ’14-12-13-18-7-12-9′. What is the code for ‘KEYBOARD’ in the same system?

• 16-22-2-25-12-26-9-23
• 11-5-25-2-15-1-18-4
• 16-22-2-25-15-26-9-23
• 16-5-2-25-12-1-9-4

Observe the numbers: each letter is replaced by the position of its reverse opposite letter (i.e. \(27 – \text{position}\)):
– M(13) -> \(27 – 13 = 14\)
– O(15) -> \(27 – 15 = 12\)
– N(14) -> \(27 – 14 = 13\)
– I(9) -> \(27 – 9 = 18\)
– T(20) -> \(27 – 20 = 7\)
– O(15) -> \(27 – 15 = 12\)
– R(18) -> \(27 – 18 = 9\)
Now for ‘KEYBOARD’:
– K(11) -> \(27 – 11 = 16\)
– E(5) -> \(27 – 5 = 22\)
– Y(25) -> \(27 – 25 = 2\)
– B(2) -> \(27 – 2 = 25\)
– O(15) -> \(27 – 15 = 12\)
– A(1) -> \(27 – 1 = 26\)
– R(18) -> \(27 – 18 = 9\)
– D(4) -> \(27 – 4 = 23\)
Code is: 16-22-2-25-12-26-9-23.