Question

Q Two times a number is 100% increase in the number. If we take half the number,what would be the decrease in %

Answer 1

First, let us see what is given:

2*x=x+x(100% increase)

x/2=?

Solution:

x/2=x-x/2

hence the value of decrement is 1/2, i.e., (1/2)*x (or) half times x

therefore, the percent decrease is:

(1/2)*100=50%.