On my sister’s 15th birthday, she was 159 cm in height, having grown 6% since the year before. How tall was she the previous year?	Pick one:
A) 150 cm	B) 140 cm	C) 142 cm	D) 154 cm	E) 160 cm
Explanation :   Given that height on 15th birthday = 159 cm and growth = 6%   Let the previous year height = x   Then height on 15th birthday = x ×100+6100=x×106100   ⇒159 = x × (106/100)   ⇒x=159×100106=1.5×100=150;cm   150 cmNSWER IS 150 cm
<result>A</result>
On my sister’s 15th birthday, she was 159 cm in height, having grown 6% since the year before. How tall was she the previous year?