(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
=> (15 × 225)/(45 × 5) + 480 = ? + (25/100) × 1240 ` ` => 15 + 480 = ? + 310 => ? = 495 – 310 => ? = 185
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