1.

The price of sugar is reduced by 20%. Now a person can buy 500g more sugar for Rs. 36. The original price of the sugar per kilogram was1. Rs. 14.402. Rs. 15.603. Rs. 184. Rs. 16.5

Answer» Correct Answer - Option 3 : Rs. 18

Given:

A person can buy 500g more sugar for Rs. 36 if the price of sugar is reduced by 20%.

Calculations:

Let the original price of sugar be Rs. x/kg.

Reduced price of sugar = 80% of x = (80/100) × x = (4/5) x

so \(\frac{36}{\frac{4x}{5}}\ - \frac{36}{x}\ = \ \frac{1}{2}\) (consumption = expenditure/price)

⇒  \(\frac{45}{x}\ -\ \frac{36}{x}\ =\ \frac{1}{2}\)

⇒ 9/x = 1/2

⇒ x= 18

∴ the original price of sugar is Rs. 18/kg.



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