A man purchased an old typewriter at Rs 19200, and spent some amount o

1.	A man purchased an old typewriter at Rs 19200, and spent some amount on its repair. He sold it for Rs 24150, and earned a profit of 15%. Find the amount he spend on the repair of the old typewriter.1. Rs 12002. Rs 18003. Rs 21004. Rs 1500
Answer» Correct Answer - Option 2 : Rs 1800 Given: Cost price of old typewriter = Rs 19200 Selling price of old typewriter = Rs 24150 Profit = 15% Formula Used: Selling price = (Cost price + amount spend on repairing) × (100 + profit %)/100 Calculation: Let the amount spend on repairing of typewriter be x. Selling price = (Cost price + amount spend on repairing) × (100 + profit %)/100 ⇒ 24150 = (19200 + x) × (100 + 15)/100 ⇒ 24150 = (19200 + x) × 115/100 ⇒ 19200 + x = 24150 × 100/115 ⇒ 19200 + x = 21000 ⇒ x = 21000 – 19200 ⇒ x = 1800 ∴ The amount spend on repairing of old typewriter is Rs 1800.

A man purchased an old typewriter at Rs 19200, and spent some amount on its repair. He sold it for Rs 24150, and earned a profit of 15%. Find the amount he spend on the repair of the old typewriter.1. Rs 12002. Rs 18003. Rs 21004. Rs 1500

Answer» Correct Answer - Option 2 : Rs 1800

Given:

Cost price of old typewriter = Rs 19200

Selling price of old typewriter = Rs 24150

Profit = 15%

Formula Used:

Selling price = (Cost price + amount spend on repairing) × (100 + profit %)/100

Calculation:

Let the amount spend on repairing of typewriter be x.

Selling price = (Cost price + amount spend on repairing) × (100 + profit %)/100

⇒ 24150 = (19200 + x) × (100 + 15)/100

⇒ 24150 = (19200 + x) × 115/100

⇒ 19200 + x = 24150 × 100/115

⇒ 19200 + x = 21000

⇒ x = 21000 – 19200

⇒ x = 1800

∴ The amount spend on repairing of old typewriter is Rs 1800.

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