Multiple choice

A man sold his bicycle for Rs. $405$ losing one-tenth of its cost price. Find its cost price.

  1. Rs. $250$
  2. Rs. $320$
  3. Rs. $400$
  4. Rs. $450$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let CP be x. Loss = 0.1x. SP = CP - Loss = 0.9x. 0.9x = 405. x = 405 / 0.9 = 450.

AI explanation

Let the cost price be x. The loss is one-tenth of the cost price, so the selling price is x - (x / 10) = 9x / 10. Given the selling price is Rs. 405, we have 9x / 10 = 405, which simplifies to x = (405 * 10) / 9. Solving this gives x = 450, making the cost price Rs. 450.

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