80% more than 20 is:
36
80% more than twenty means that there is an addition of 80% of 20 to the amount 20.
i.e. we have to calculate 80% of 20 and add it to 20 to get the total amount.
Now, 80% of 20 is:
[tex]=\dfrac{80}{100}\times 20\\\\\\=\dfrac{1600}{100}\\\\\\=16[/tex]
Now, 80% more than 20 is equal to:
20+16=36
Hence, the quantity is:
36
