Discount Ques 10
Question
For a meal in a restaurant, a customer got $10 \%$ happy hour discount but paid $2.5 \%$ CGST and $2.5 \%$ SGST on the discounted rate. Had he got Rs. 200 as discount and then paid the sales taxes, he would have paid Rs. 42 more. What was the price of the meal before discount?
(1) Rs. 3200
(2) Rs. 2400
(3) Rs. 2000
(4) Rs. 3600
(5) Rs. 4000
(Canara Bank PO Exam 04.03.2018)
Show Answer
Answer: (2)
Solution: (2)
Price of meal before discount $=$ Rs. $x$.
Price after discount $=$ Rs. $\frac{9 x}{10}$
Price after taxes $=\frac{9 x}{10} \times \frac{105}{100}=$ Rs. $\frac{189 x}{200}$
Case II,
Price of meal = Rs. $(x-200) \times \frac{105}{100}$
According to the question,
$(x-200) \times \frac{105}{100}-\frac{189 x}{200}=42$
$\Rightarrow \frac{105 x-21000}{100}-\frac{189 x}{200}$ $=42$
$\Rightarrow \frac{210 x-42000-189 x}{200}=42$
$\Rightarrow 21 x-42000=8400$
$\Rightarrow 21 x=42000+8400=50400$
$\Rightarrow x=\frac{50400}{21}=$ Rs. 2400
BETA
