The price of an article is reduced by 10% but the daily sale of the article is increased by 20%. The net effect on the daily sale receipts is:

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SSC GD Constable (2022) Official Paper (Held On : 24 Jan 2023 Shift 1)
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  1. Increase in 10%
  2. Increase in 12%
  3. Increase in 8%
  4. Increase in 5%

Answer (Detailed Solution Below)

Option 3 : Increase in 8%
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Detailed Solution

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Given Data:

Decrease in price = 10%

Increase in sales = 20%

Concept:

Net effect = a% + b% + (a% × b%),

where a and b are increased percent. 

Calculation:

Using the above formula,

Net effect = -10% + 20% + (-10% × 20%)

⇒ Net effect = 8%

Therefore, the net effect on the daily sale receipts is an increase of 8%.

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