Question

Find a single discount equivalent to two successive discounts of (i) 12% and 8% (ii) 15% and 5%​

Answer 1

Answer:

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Step-by-step explanation:

Effective discount for a% and b% discounts = a% + b% - (ab/100)%

Effective discount for 15% and 5% discounts = 15% + 5% - {(15 × 5)/100}%

⇒ 20% - 0.75%

⇒ 19.25%

∴ Equivalent percent is 19.25%.

Answer 2

Answer:

efftive discount for a% and b%

discount =a%+b%-(ab/100)%