Question

the sum of number when a number is increased by 10 % and decreased by 10 % is 100 what is the number ?
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Answer 1

Answer:

Well the answer is 100

Step-by-step explanation:

Let's take the number = r

The number will be = r + 10%

= r10% - 10%

= r

which means the number will be the given answer

given answer is 100

so the number is 100

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Answer 2

Answer:

= 50

Step-by-step explanation:

let the number be 'x '

increased number = x + 10% of x

x + 0.1x = 1.1 x

decreased number = x - 10% of x

= x - 0.1x = 0.9x

sum = 100

1.1x + 0.9x = 100

2x = 100 => x = 50