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Mathematics for IGCSE & O level - Percentages (Section 5 - No. 38)

Decrease $500 by each of these percentages: a) 5% b) 10%
$475, $400
$475, $450
$25, $50
$450, $400

解释

Decrease by 5% is 500 * 0.95 = 475. Decrease by 10% is 500 * 0.90 = 450

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