यदि WORK = 7935, ROCK = 3587 और WART = 1945 है, तो T किस अंक को दर्शाता है? A. या तो 9 या 1 B. या तो 8 या 1 C. या तो 4 या 5 D. या तो 1 या 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.