Mathematics for IGCSE & O level - Percentages (Section 3 - No. 8)
Which of the following represents simple interest?
A = P(1 + r/100)^n
A = P + Prn
A = P (1 + r)^n
A = P + r*n
คำอธิบาย
Simple interest formula: Interest = Principal * Rate * Time, plus the principal.