By what percent will the product of two numbers increase if one of them is increased by 30% and the other is increased by 20%?
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By what percent will the product of two numbers increase if one of them is increased by 30% and the other is increased by 20%?
- Let the two numbers be a and b
- Their product will be ab
- One of them is increased by 30% so it will be 100 % a + 30% a
- = a +0.3 a
- = 1.3 a
- Similarly 20% increase in b will be 1.2 b
- So product will be 1.3 a x 1.2 b = 1.56 ab
- Now previous product was ab.
- Therefore percentage increase will be (1.56 ab – ab) x 100 %
- = 0.56 x 100
- = 56%
- Similar link will be
- https://brainly.in/question/1665716
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