Question

If a no. is increased 30%and then decrease 30% the net increase and decrease v% will be​

Answer 1

Answer:

1

1

A number is decreased by 30%then increased by 30% then further decreased by 30%. What is the net increase or decrease percent in the number?

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Ajijul Dhabak

Answered 9 September

A number is decreased by 30%then increased by 30% then further decreased by 30%. What is the net increase or decrease percent in the number?

30%=30/100=3/10

30% decreased of a number means if the number is 10 ,then it will be 7.

30% increase of a number means if the number is 10 then it will be 13.

Further 30% decreased of means if the number is 10 then it will be 7.

Then, 10×10×10=1000 will be 7×13×7=637.

So, out of 1000 total decrease (1000 - 637)=363

Then, out of 1000/10=100 total decrease 363/10=36.3

Finally, Net decreased percentage in the number is 36.3%