Paypal verification increases the security for **Water Purification** users. Verified members have successfully completed PayPal"s Strict Verification system to establish their identity. When you shop for **Aqua Pure**, you can now do it with confidence.

#### Frequently Asked Questions...

**Algebra homework...... I have to find the percent increase in price......?**

*
*

*Last year, the Aqua-Pure Water Filters company raised their price of a
water filter by 15%.
This year, they raised the price again, by another 15%.
After these two years of 15% price increases, what was the total rate of increase from the original price of two years ago?
You must show your work.*

(A) 30% increase from the original price

(B) 22.5% increase from the original price

(C) 32.25% increase from the original price

(D) 60% increase from the original price

How do I do this?

**Answer:**

Let the original price of the water filter of Aqua-Pure Water Filters company be 100.

Last year there was 15% increase,

so 100 * 15% = 100 * 15/100 =15

so the new price after 15% increase in original price last year is

100 + 15 = 115.

this year there was 15% increase.

For calculating this year increase we must take the new price after increase last year,

so 115 * 15% = 115 * 15/100 = 17.25.

New price after 15% increase in original price this year is

115 + 17.25 = 132.25.

Increase from original price = 132.25 - 100 = 32.25.

therefore total rate of increase is

32.25 divided by 100 multiplied with 100 = 32.25%.

So the answer is (C) 32.25% increase from the original price