Question

A number is first increased by 20% and
then decreased by 15% Find the met
increase or decrease. Does it make any
difference if it is 15% disreased first and
then to 20% increased​

Answer 1

Answer:

Yes, it will definitely make a difference, let's see how...

Step-by-step explanation:

let the number be 100, then firstly we increase by 20%,

so, 100+ (20% of 100),

= 100+ 20,

= 120.

Now, we decrease by 15%,

so, 120- (15% of 120),

= 120-(18),

= 102.

So now by this calculation, we came at the fact that,

when the number is 100, then it decrease by 2,

and when the number is 1, then it decreases by 2/100, or 1/50,

similarly, when the number is X, then it decrease by (2/100*X),

= 2% of X