the difference between increasing a number by 5% and decreasing it by 5% is 20. what is the number ?
Anonymous:
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Answers
Answered by
4
10 % =20
1% =2
100% = 200
number is 200
1% =2
100% = 200
number is 200
Answered by
5
Take x as unknown number
Then 20% to that x
X+5X/100
20 less to that
X-5X/100
Now equate to 20
X+5X/100 - X-5X/100=20
We get 200...
So ans is 200
Verify
210-190=200
Then 20% to that x
X+5X/100
20 less to that
X-5X/100
Now equate to 20
X+5X/100 - X-5X/100=20
We get 200...
So ans is 200
Verify
210-190=200
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