Pinky bought 25 books at the rate of ₹14 each, 40 pens at the rate of ₹7 each and 15 pencils at the rate of ₹6 each. Calculate the average price (in ₹) of all the stationery goods.

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  1. 7
  2. 9
  3. 8
  4. 6

Answer (Detailed Solution Below)

Option 2 : 9
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Given:

Pinky bought 25 books at the rate of ₹14 each, 40 pens at the rate of ₹7 each and 15 pencils at the rate of ₹6 each.

Formula used:

Average price = (Total cost of all items) / (Total number of items)

Calculation:

Total cost of books = 25 × 14 = ₹350

Total cost of pens = 40 × 7 = ₹280

Total cost of pencils = 15 × 6 = ₹90

Total cost of all items = 350 + 280 + 90 = ₹720

Total number of items = 25 + 40 + 15 = 80

Average price = Total cost of all items / Total number of items

⇒ Average price = 720 / 80

⇒ Average price = 9

∴ The correct answer is option 2.

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