Question

find a number such that if 5,15,35 are added to it,the product of the first and third results may be equal to the square of the second​

Answer 1

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Answer 2

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Let the number be x ;

Then the respective numbers formed by adding 5,15,35 are ;

(x+5),(x+15),(x+35)

According to the question :

(x+5)×(x+35) = (x+15)^2

x^2+35x+5x+175 = x^2+30x+225

40x + 175 = 30x+225

40x-30x = 225-175

10x = 50

x = 5

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Hence the number is 5