Mathematics for IGCSE & O level - Percentages (Section 3 - No. 36)
If the original value of an item is £250 and reduces by 45% over 5 years, what is its final value?
£68.75
£50
£70
£60.50
解释
Value = 250 * (1-0.45)^5 = 250 * 0.0503 = £68.75 approximately