850 students took the test on English and Maths. 35% students failed in english and 45% failed in maths. 40% of those who passed in maths also passed in english, then how many students failed in both ?	Answers:
A) a) 162	B) b) 138	C) c) 60	D) d) 17	E) e) 12
Passed in english = 65%   Passed in maths = 55%   Passed in both = 40% of 55% = 2/5 * (55%) = 22%   Passed in (English + Maths - Both + Neither) 2/5 * (55 )= 
<gadget id="calculator">2/5 * (55 )</gadget>
<output>22</output>
22%   Passed in (English + Maths - Both + Neither)= 100%   65 + 55 - 22 + Neither = 100   Neither = 100 - 98= 
<gadget id="calculator">100 - 98</gadget>
<output>2</output>
2%= 0.02 * 850= 
<gadget id="calculator">0.02 * 850</gadget>
<output>17</output>
17   Answer: d) 17
<result>D</result>
850 students took the test on English and Maths. 35% students failed in english and 45% failed in maths. 40% of those who passed in maths also passed in english, then how many students failed in both ?