Irin, Ingrid and Nell bake chocolate chip cookies in the ratio of 9.18: 5.17: 2.05. If altogether they baked a batch of 170 cookies, what percent of the cookies did Nell bake?  Choose one:	A) 0.125%	B) 1.25%	C) 11.7%	D) 125%	E) 0.152%
9.18x+5.17x+2.05x = 16.4x 9.18 +5.17 +2.05= 
<gadget id="calculator">9.18 +5.17 +2.05</gadget>
<output>16.4</output>
16.4x= 170 cookies   x= 170/16.4 = 10 (approx)   So, Nell baked 10*2.05 cookies or 20 cookies (approx)   % share = 20/170 = 11.7 approx   Hence, answer is 11.7%.
<result>C</result>
Irin, Ingrid and Nell bake chocolate chip cookies in the ratio of 9.18: 5.17: 2.05. If altogether they baked a batch of 170 cookies, what percent of the cookies did Nell bake?