Q. A single discount equivalent to the successive discounts of 10%, 20% and 25% is
Answer: 46%
Notes: Single of discount for successive discounts 10% and 20% $latex = \left ( 20+10-\frac{20\times 10}{100} \right )\% = 28\%&s=1$ ∴ Equivalent discount for discounts 28% and 25% $latex = \left ( 28+25-\frac{28\times 25}{100} \right )\% = 53-7 = 46\%&s=1$ Hence option [A] is the right answer.

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