On my sister's birthday, she was 147 cm in height, having grown 5% since the year before. How tall was she the previous year? Choose the correct choice from the following options.
A) 145 cm B) 140 cm C) 142 cm D) 138 cm E) 135 cm
Let the previous year's height be x.   1.05x = 147   x = 140   The answer is 140 cm.
<result>B</result>
On my sister's birthday, she was 147 cm in height, having grown 5% since the year before. How tall was she the previous year?