Question
If the sum of 60% of a fractional number and the
number's square root is 5 greater than one fifth of the number, then the number isSolution
ATQ Let the number be x According to the question, (60/100) × x + √x = 1x/5 + 5 = 0.6x + √x = 0.2x + 5 = √x = 5 - 0.4x Squaring both the sides = x = 25 + 0.16x2 - 4x = 0.16x2 - 5x + 25 = 0 = x = 6.25 and 25 As, number is fraction hence required answer will be 6.25.
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