Question

mr gaurav sells 20kg of rice at rs.400. a customer asks 28% discount and he agrees to it but instead of 1 kg, he gives 16% less rice. what is the effective discount that the customer gets?

Answer 1

$<b>HEY THERE!$✌✌✌

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Let the MP = Re. 1 per kg then 
Initially : 
Weight = 100 kg

MP = Rs. 100

Rate = 1 Rs / kg.

Finally :

Weight = (100 - 16)kg = 84 kg

MP = Rs. 84

Rate = 72 / SP = 72/84

Effective discount

=>$1 - \frac{72}{84}\\ \\ = \frac{84 - 72}{84} \\ \\= \frac{12}{84} \\ \\= \frac{1}{7}$

% discount = [(1 / 7) ]x 100 = 14.28 %

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Thanks for the question!

$\textbf{Thank \: You}$

Answer 2

❤❤here is your answer ✌✌
$\huge\underline {\red {\bold {Answer}}}$

Let ,
The MP = Re. 1 per kg then 
Initially: Weight = 100 kg

MP = Rs. 100

Rate = 1 Rs / kg.

again :-

Weight = (100 - 16)kg = 84 kg

MP = Rs. 84

Rate = 72 / SP = 72/84

Effective discount 

➡1 - 72/84 = 84 - 72/84
= 12/84
=1/7

% discount = (1/7)x 100 = 14.28 %

$\huge\underline {\red {\bold {14.28}}}$%