a number is increased by 10% and then decreased by10% . find the increase or decrease percent.
Let the number be 100
Then increased number = 100 + 10% of 100 = 110
Then the number is decreased by 10%, so number = 110-10% of 110 = 110-11
= 99
So, decrease percent = 1%
- -1
Dear Ththteh,
Assume the number to be 100 for instance,
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%
= 1%.
Hope this helps...
Assume the number to be 100 for instance,
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%
= 1%.
Hope this helps...
- 8
Solution :-
Let the required number be 100.
Then, according to the question.
? Firstly,?the number is increased by 10 %
? 100 + (100?10)/100
? 100 + 10
= 110
Secondly, it is decreased by 10 %?
? 110 - (110?10)/100
? 110 - 11
? 99
Net increase or decrease percentage?
= (Original Number - New Number)?100/100
? (100 - 99)?100/100
? (1?100)/100
? 100/100
= 1 %
So, net decrease is 1 %
Let the required number be 100.
Then, according to the question.
? Firstly,?the number is increased by 10 %
? 100 + (100?10)/100
? 100 + 10
= 110
Secondly, it is decreased by 10 %?
? 110 - (110?10)/100
? 110 - 11
? 99
Net increase or decrease percentage?
= (Original Number - New Number)?100/100
? (100 - 99)?100/100
? (1?100)/100
? 100/100
= 1 %
So, net decrease is 1 %
- 0
Assume the number to be 100 for instance,
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%
= 1%
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%
= 1%
- 0
Dear Ththteh,
Assume the ?number to be 100 for instance,?
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%?
= 1%.
Hope this helps...
Assume the ?number to be 100 for instance,?
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%?
= 1%.
Hope this helps...
- 0
Dear Ththteh,
Assume the ?number to be 100 for instance,?
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%?
= 1%.
Hope this helps...
Assume the ?number to be 100 for instance,?
10% of 100 increased = 100 + ( 10/100*100 )
= 100 + 10 = 110
The resulting number decreased by its 10% = 110- (10/100*110)
= 110-11 = 99
Now, net decrease =100-99 = 1
Decrease percent = (Decrease / Original number * 100) %
= ( 1 / 100 *100 )%?
= 1%.
Hope this helps...
- 0