A luxury watchmaker allows a discount of 10% on the marked price of a watch but charges a sales tax of 18% on the discounted price. If the customer pays Rs. 47,790 as the price including the sales tax, then what will be the marked price?

  1. Rs. 45,000
  2. Rs. 46,500
  3. Rs. 55,000
  4. Rs. 54,000

Answer (Detailed Solution Below)

Option 1 : Rs. 45,000
Free
SSC CHSL Exam 2023 Tier-I Official Paper (Held On: 02 Aug 2023 Shift 1)
100 Qs. 200 Marks 60 Mins

Detailed Solution

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Given:

Discount = 10%

Sales tax = 18%

Customer’s C.P = Rs. 47790

Concept used:

S.P = M.P × (100 – D%)/100

Where,

S.P → Selling price

M.P → Marked price

D% → Discount%

Calculations:

Let the original M.P be 100x

S.P after discount of 10% = 100x × 90/100 = 90x

S.P after sales tax = 90x + 18% of 90x

⇒ 90x + 16.2x

⇒ 106.2x

According to the question

⇒ 106.2x = 47,790

⇒ x = 450

The marked price = 100x = 450 × 100 = Rs. 45,000

The marked price of the watch is Rs. 45000.

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