LogFAQs > #948564412

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TopicThis Math Question is SO HARD that only a 2% of People can get it!! Can you???
SKARDAVNELNATE
12/20/20 12:46:09 PM
#18:


AB
CD

(A+B) - (C+D) = -4

(4+5) - (7+6) = -4
9 - 13 = -4

(7+8) - (10+9) = -4
15 - 19 = -4

(A+11) - (8+12) = -4
(A+11) - 20 = -4
A+11 = 16
A = 5

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