(23 ÷ 232) * (? ÷ 276) * 29 = (1 ÷ 8)
a) 18
b) 17
c) 13
d) 12
e) 11
Sol:
(23 ÷ 232) * (? ÷ 276) * 29 = (1 ÷ 8)
? = 96/8 = 12
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