ಒಂದು ವೇಳೆ WORK = 7935, ROCK = 3587 ಮತ್ತು WART = 1945 ಆಗಿದ್ದರೆ, T ಯಾವ ಸಂಖ್ಯೆಯನ್ನು ಪ್ರತಿನಿಧಿಸುತ್ತದೆ? A. 9 ಅಥವಾ 1 B. 8 ಅಥವಾ 1 C. 4 ಅಥವಾ 5 D. 1 ಅಥವಾ 4

WORK and ROCK share O, R and K, and their codes share 3, 5 and 7, so W = 9 and C = 8. WART = 1945 contains W (9) and R; the only digit for R common to both is 5. That leaves A and T as 1 and 4 in some order, so T is either 1 or 4.