Question

3/4 of number is 4 more than 4/5 of the same number . Find the number​

Answer 1

Answer:

Let the required number is x,

4/5 of x = 3/4 of x + 5

4x/5 = 3x/4 + 5

4x/5 - 3x/4 = 5

(16x - 15x) /20 = 5

x = 5 × 20

x = 100

Number required here is 100

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Answer 2

Let the munber be 'x'.

$(\frac{3}{4} ) \times x = 4 + ( \frac{4}{5} )x \\ \\ \frac{3x}{4} = 4 + \frac{4x}{5} \\ \\ \frac{3x}{4} - \frac{4x}{5} = 4 \\ \\ \frac{15x - 16x}{20} = 4 \\ \\ - x = 80 \\ \\ x = - 80$