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1 bar of chocolate costs Rs. 80 but a box containing 6 bars of the same chocolate costs Rs. 400. What is the effective discount (in %) on the box?
1. 20
2. 16.67
3. 25
4. 15

1 Answer

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Best answer
Correct Answer - Option 2 : 16.67

Given :

Cost of 1 bar of chocolate is Rs 80 

After discount price of 6 bars is Rs 400 

Formula used :

Discount percent = [(marked price - selling price)/marked price] × 100

Calculations :

Cost of 6 chocolate bars = 6 × 80 = 480 rupees   (cost of 1 bar is 80 rupees)

Cost of 6 chocolate bars after discount = 400 rupees 

Effective discount  = 480 - 400 = 80 rupees 

Effective discount percent = (80/480) × 100 

⇒ 100/6 = 16.67

∴ effective discount is 16.67%  

 

 

 

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