Multiple choice

If the selling price is tripled and cost price doubled the profit would become 65%. What is the present profit (in %)?()

  1. 20

  2. 15

  3. 25

  4. 10
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let CP = 100, SP = 100 + P (current profit). New SP = 3(100 + P), new CP = 200. New profit = 65%, so (3(100 + P) - 200)/200 = 65/100. Thus 300 + 3P - 200 = 130, so 100 + 3P = 130, 3P = 30, P = 10%.

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