Question : Directions: If 15 (196) 29 and 16 (100) 6, what is the value of A in 31 (A) 48?
Option 1: 361
Option 2: 256
Option 3: 324
Option 4: 289
Correct Answer: 289
Solution : Given: 15 (196) 29; 16 (100) 6
15 (196) 29→29 –15 = 14; (14) 2 = 196 16 (100) 6→16 – 6 = 10; (10) 2 = 100 Similarly, 31 (A) 48→48 – 31 = 17; (17) 2 = 289
The value of A is 289. Hence, the fourth option is correct.
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