The difference between a discount of 30% on ₹ 2000 and two successive discounts of 25% and 5% on the same amount is

Single equivalent discount per cent to 25% and 5%
= r₁ + r₂ - (r₁ . r₂)/100 %
= 25 + 5 - (25 x 5)/100
= 30 - 1.25
= 28.78 %
∴ Required difference = [(30 - 28.75) x 2000]/100
= 1.25 x 2000/100 = ₹ 25