Question

A number is increased by 25% and then decreased by 25%. Find the change in that number.​

Answer 1

Answer:

Change is the number = 0

Step-by-step explanation:

Let the number be 100.

Now, first the number is increased by 25℅ so,

100 + 25℅ of 100

=> 100 + (25/100)*100

=> 100 + 25

=> 125

Now, the number is decreased by 25℅,

125 - 20℅ of 125

=> 125 - (20/100)*125

=> 125 - (125/5)

=> 125 - 25

=> 100

Altogether, we can conclude that there is no change in the number as our final result is the number itself.

Hence,

Change in the number = 100 - 100 = 0