a no is increased by 20% and the increased number is decreased by 20% find the net increase and decrease percent
Answers
Answer:
A Number Is Increased By 20% And The Increased Number Is Decreased By 20%. Find The Increase Or Decrease Percent. Hence the net percent decrease is 4%.
Step-by-step explanation:
Let the number be =100
Increase in the number =20% of 100
=
100
20
×100
=20
Increased number =100+20
=120
The resulting number decreased by 20%
Decrease in the number =
120
20
×120
=24
New number =120−24
=96
Now, net decrease =100−96
Net % decrease =
Original number
Net decrease
×100
=
100
4
×100
=4%
Hence the net percent decrease is 4%.
Answer:
4%
A Number Is Increased By 20% And The Increased Number Is Decreased By 20%. Find The Increase Or Decrease Percent. Hence the net percent decrease is 4%.