Question

If a number is increased from-----to
20, then increase per cent is 25%.​

Answer 1

Answer:

15

Step-by-step explanation:

let number=x

increased 20-x

20-x/20×100=25

20-x=5

x=15

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Answer 2

Answer:

If a number is increased from 16 to 20, then increase per cent is 25%.

Step-by-step explanation:

Let the number be x.

ATQ,

$x + 25\%x = 20 \\ = > x + \frac{25x}{100} = 20 \\ = > \frac{125x}{100} = 20 \\ = > \frac{5x}{4} = 20 \\ = > x = 20 \times \frac{4}{5} \\ = > x = 16$

If a number is increased from 16 to

20, then increase per cent is 25%.

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