Multiple choice

Five percent more is gained by selling an article for Rs 190 than by selling it for Rs 180. Find its cost price.

  1. Rs 200

  2. Rs 205

  3. Rs 195

  4. Rs 210
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The profit percentage increases by 5 percentage points when selling price increases from Rs 180 to Rs 190. Let CP be x. Then (190-x)/x - (180-x)/x = 5/100, which gives 10/x = 0.05, so x = 200. The cost price is Rs 200. Option D (Rs 210) would give profits of 5% and 8.3% respectively - a difference of only 3.3 percentage points, not 5%.

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