the average of 13 result is 60. average of the first 7 of them is 57 and that of the last 7 is 61. find the 8 th result?	Choose the correct choice from the following choices:
A) 35	B) 37	C) 46	D) 48	E) 50
<gadget id="calculator">7 * 57</gadget>
<output>399</output>

<gadget id="calculator">7 * 61</gadget>
<output>427</output>

<gadget id="calculator">399 + 427</gadget>
<output>826</output>

<gadget id="calculator">13 * 60</gadget>
<output>780</output>

<gadget id="calculator">826 - 780</gadget>
<output>46</output>

<result>C</result>
the average of 13 result is 60. average of the first 7 of them is 57 and that of the last 7 is 61. find the 8 th result?
subtract(add(multiply(7, 57), multiply(7, 61)), multiply(13, 60))
sum of all the 13 results = 13 * 60 = 780 sum of the first 7 of them = 7 * 57 = 399 sum of the last 7 of them = 7 * 61 = 427 so , the 8 th number = 427 + 399 - 780 = 46 . c