Question

18. A hardware merchant offers a discount of 10%, 5% and 5% to a trader.
Find an equivalent rate. How much should be allowed as discount on a
bill for * 12,186?
(J.A.C., 2008)
[Ans. 18.775%; * 2,287.92]​

Answer 1

Answer:

Equivalent discount =

$100 - 100(1 - \frac{10}{100} )(1 - \frac{5}{100} )(1 - \frac{5}{100} ) \\ = 100 - 100 \times \frac{9}{10} \times \frac{19}{20} \times \frac{19}{20} \\ = 100 - 81.225 \\ = 18.775\%$

Marked price = ₹12176

Discount = 18.775/100 × 12186 = ₹ 2,287.92

Answer 2

this

is

correct

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