If an amount of $100 in a savings account increases by 10%, then increases by 10% again, is that the same as increasing by 20%?

1 Answer
Dec 6, 2016

Answer:

No, #$120 != $121#

Explanation:

No, and this can be shown as follows:

10% of $100 is $10. We then add this together to give $110.

Now, another 10% increase, this time on $110 gives an $11 increase.

Adding this together gives a final total of $121.

20% of $100 is $20. We then add this together to give $120.

#$120 != $121#