Question

Lalit goes to Cloths shop to buy a Shirt and Jeans. He bargains for a 15% discount on a jeans and 20% discount on a Shirt. However the shopkeeper by mistake, interchanged the discount percentage figure while making the bill and Lalit paid accordingly. When compared to what he should pay for his purchases, what percentage did Lalit pay extra amount given that the Jeans cost 40% as much as the Shirt.
1. 1.63%
2. 1.89%
3. 3.2%
4. 2.63%

Answer 1

Correct Answer - Option 4 : 2.63%

Given:

Lalit goes to cloth shop to buy a Shirt and a Jeans. He bargains for a 15% discount on a jeans and 20% discount on a shirt.

The jeans cost 40% as much as the shirt.

Formula used:

After discount cost of the product = given amount (100 – discount%)/100

Calculation:

Let the cost price of shirt Rs. 100

According to the question,

The cost price of jeans 40% of shirt price

⇒ 100(40/100)

⇒ Rs. 40

The bargained price by Lalit on jeans and shirt

Cost of jeans = 15% discount of Rs. 40

⇒ 40(100 – 15)/100

⇒ Rs. 34

Cost of shirt = 20% discount of Rs. 100

⇒ 100(100 – 20)/100

⇒ Rs. 80

So, Total bargained value = 80 + 34

⇒ Rs. 114

But, He actually pays

Cost of jeans = 20% discount of Rs. 40

⇒ 40(100 – 20)/100

⇒ Rs. 32

Cost of shirt = 15% discount of Rs. 100

⇒ 100(100 – 15)/100

⇒ Rs. 85

The total actually pays = 85 + 32

⇒ Rs. 117

Lalit pays extra amount in percentage

⇒ ((117 – 114)/114)× 100

⇒ 2.63%

∴ Lalit pays extra amount is 2.63%.