A. Discount ÷ SP × 100
B. Discount ÷ CP × 100
C. Discount ÷ MP × 100
D. MP ÷ Discount × 100

A. 5%
B. 10%
C. Zero
D. 100%

A. 1/3
B. 1/4
C. 1/5
D. 1/6

A. 950
B. 900
C. 850
D. 920

A. SP − CP
B. MP − SP
C. CP − MP
D. SP − MP

A. Cost price
B. Selling price
C. Marked price
D. Profit

A. Calculator
B. Formula memory
C. Short tricks
D. Practice

A. Long
B. Conceptual
C. Calculation-based
D. Both B and C

A. Time
B. Rate
C. Principal
D. All equally

A. Zero
B. Infinite
C. One
D. Undefined