Nora’s leaf collection consisted of 150 leaves in August. By December, her collection had grown to 177 leaves. By how much did her collection increase between August and December?



A. 9%

B. 12%

C. 15%

D. 18%

Respuesta :

150 leaves -----100 %
177 leaves ----- x %
------------------------------
150 : 177 = 100 : x
x = ( 177 * 100 ) : 150
x = 118 %
118 5 - 100 % = 18%
Answer: Her collection increased by D ) 18 % 

Yep the answer is D.18%