20% Discount on phone

mediumGrade 6-8discount

The Problem

A phone costs $170. The store offers a 20% discount. What is the final price?

Answer:

$136

Key Information

  • Original price: $170
  • Discount: 20%

Formula

Final Price = Original Price - (Original Price × Discount%)

Step-by-Step Solution

1

Identify original price and discount

Original price = $170, Discount = 20%
2

Calculate discount amount

Discount = 170 × 20% = 170 × 0.20
3

Calculate discount value

170 × 0.20 = $34
4

Subtract discount from original price

170 - 34 = 136
5

Final answer

The final price is $136

Common Mistakes to Avoid

  • Forgetting to subtract the discount from original price
  • Calculating percentage incorrectly

Helpful Tips

  • Convert percentage to decimal by dividing by 100
  • Multiply, then subtract from original price

Real-World Application

Discount calculations help you save money when shopping during sales.

Related Topics:

percentagediscountmoneyword problems

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