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- If 81 # 145 = 19 and 345 #18 = 21, then what is the value of 98 # 71?
Question 1:
If 81 # 145 = 19 and 345 #18 = 21, then what is the value of 98 # 71? A. 81
B. 123
C. 25
Feedback 81#145 = (8+1) + (1+4+5) = 9 +10 = 19 Similarly 345 # 18 = (3 + 4 + 5) + (1+8) = 21 :. 98 # 71 = (9+8) + (7+1) = 25
D. 36
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