Yoque borrowed money from her sister. She promised to pay it back in 11 months including an additional 10% of the money she borrowed. If she pays $15 per month, how much money did she borrow?
In 11 months, Yoque will pay a total of $15 x 11 = $
<gadget id="calculator">15*11</gadget>
<output>165</output>
165.
The amount $165 is 100% + 10% = 110% of the money she borrowed.
So, 1% is equal to $165/110 = $
<gadget id="calculator">165/110</gadget>
<output>3/2 = around 1.5</output>
1.50.
Hence, Yoque borrowed $1.50 x 100 = $
<gadget id="calculator">1.50*100</gadget>
<output>150</output>
150.

<result>150</result>