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Mathematics for IGCSE & O level - Percentages (Section 3 - No. 34)

If a TV is on sale for $600 after a 20% discount, what was its original price?
$480
$680
$720
$750

Giải thích

600 represents 80% of the original price. So, x * 0.80 = 600 -> x=750.

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