Mathematics for IGCSE & O level - Percentages (Section 5 - No. 35)
In a sale, all prices are reduced by 10%.
Lalitha paid $34.70 for a dress in the sale.
What was the original price of the dress?
38.50
38.50
31.23
30.23
คำอธิบาย
If x * 0.9 = 34.70, then x = 34.70 / 0.9 = 38.56