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The first case of 'bird flu' (avian influenza) was reported in Japan in 1997. This initial outbreak involved a highly pathogenic avian influenza (HPAI) virus strain known as H5N1, which led to significant concern due to its impact on poultry and the potential risk of transmission to humans. Since then, bird flu has been detected in various countries around the world.
144 (1/2) × 14 – 28 = 7 × ?
961 × 4 ÷ 31 – 15% of 180 = ? – 73
32 + 26 × (484 ÷ 44) + 450 ÷ 9 = ?
48% of ? = 10176
104 × 21 ÷ 13 + ? % of 300 = 320 + 22
{(8× 8 + 3 × 39) - 620 ÷ 20} = ?
12(3/5) + 4(1/5) × 3(2/3) =?
(122 - 82 ) of 52 + 52 = ?2
65% of ? = 50 + 20 × 4
(75 + 0.25 × 10) × 4 = ?2 - 14