1 + 4 = 5
2 + 5 = 12
3 + 6 = 21
8 ± 11 = ?
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Answer:
99
Step-by-step explanation:
4+1= 5
2+5= 12
Bcoz 5*2+2 = 12
6+3 = 21
Bcoz 6*3+3
8+11= 99
8*11+11= 99
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