Find the value of 40 ÷ 5 of 6 × [3 ÷ 6 × (12 – 6)] – (15 ÷ 3 of 30):
40 ÷ 5 of 6 × [3 ÷ 6 × (12 – 6)] – (15 ÷ 3 of 30) By BODMAS rule: => 40/30 × {3/6 × 6} – (15/90) => 4/3 × 3 – 1/6 => 23/6 = 3(5/6)
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