On my sister's birthday, she was 143 cm in height, having grown 10% since the year before. How tall was she the previous year?
Choose the correct choice from the following answers:
A) 140 cm B) 136 cm C) 130 cm D) 127 cm E) 125 cm
Let the previous year's height be x.   1.1x = 143   x = 130   The answer is 130 cm.
<result>C</result>
On my sister's birthday, she was 143 cm in height, having grown 10% since the year before. How tall was she the previous year?