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The prices of two articles are in the ratio 4 : 5. If the price of the first article is increased by x% and that of the other is decreased
by 30%, then the new prices of A and B will be in the ratio 10 : 7. The value of x is:
24.5
22.5
25
20
- The initial price ratio of two articles A and B is 4:5.
- Let the prices of the articles be 4x for A and 5x for B.
- The price of A is increased by x%, making it 4x * (1 + x/100).
- The price of B is decreased by 30%, making it 5x * 0.7.
- The new price ratio given is 10:7. Set up the equation: 4x(1+x/100)5x∗0.7=107.
- Simplifying the equation gives x = 25.
Your answer is right: Option 3 – 25 is the correct answer.
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