Mathematics for IGCSE & O level - Percentages (Section 5 - No. 19)
Increase $400 by each of these percentages:
a) 1%
b) 5%
$404, $420
$400, $405
$4.00, $20.00
$4.00, $5.00
Explanation
Increase by 1% is 400 * 1.01 = 404. Increase by 5% is 400 * 1.05 = 420
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