Answer:
1.25
Step-by-step explanation:
If we have a quantity x and we want to increase it by 25%, we will need to find 25% of x and then add this quantity to x.
Therefore, the quantity x increased by 25% is calculated as:
25%(x) + x
0.25x + x
So, factorizing the x, we get:
x ( 0.25 + 1)
x (1.25)
It means that we need to multiply by 1.25 in order to increase any quantity by 25%.