a number is increased by 20 % and then decreased by 20 % find the incr

1.	a number is increased by 20 % and then decreased by 20 % find the increase or decrease percentage plz explain step by step and no bakwas here
Answer» Answer: There is a DECREASE of 4%. Step-by-step EXPLANATION: Let the number be 100. The number is INCREASED by 20%. so, (20% of 100) + 100 = (20/100 ×100) + 100 = 20 + 100 = 120 Then the number DECREASED by 20% so, 120 - (20% of 120) = 120 - (20/100 × 120) = 120 - 24 = 96 Decrease = 100 - 96 = 4 So, decrease percent = ( 4/100 × 100 )% = 4%

a number is increased by 20 % and then decreased by 20 % find the increase or decrease percentage plz explain step by step and no bakwas here

Answer»

Answer:

There is a DECREASE of 4%.

Step-by-step EXPLANATION:

Let the number be 100.

The number is INCREASED by 20%.

so, (20% of 100) + 100

= (20/100 ×100) + 100

= 20 + 100

= 120

Then the number DECREASED by 20%

so, 120 - (20% of 120)

= 120 - (20/100 × 120)

= 120 - 24

= 96

Decrease = 100 - 96

= 4

So, decrease percent = ( 4/100 × 100 )%

= 4%