the average age of 15 students of a class is 15 years. out of these, the average age of 4 students is 14 years and that of the other 10 students is 16 years. the age of the 15 th student is	Choose the correct option:
A) 9 years
B) 11 years
C) 14 years
D) 21 years
E) 9 years
<gadget id="calculator">15 * 15</gadget>
<output>225</output>

<gadget id="calculator">4 * 14</gadget>
<output>56</output>

<gadget id="calculator">10 * 16</gadget>
<output>160</output>

<gadget id="calculator">56 + 160</gadget>
<output>216</output>

<gadget id="calculator">225 - 216</gadget>
<output>9</output>

<result>E</result>
the average age of 15 students of a class is 15 years. out of these, the average age of 4 students is 14 years and that of the other 10 students is 16 years. the age of the 15 th student is
subtract(multiply(15, 15), add(multiply(4, 14), multiply(10, 16)))
"solution age of the 15 th student = [ 15 x 15 - ( 14 x 4 + 16 x 10 ) ] = ( 225 - 216 ) = 9 years . answer e"