the average weight of 20 persons sitting in a boat had some value. a new person added to them whose weight was 46 kg only. due to his arrival, the average weight of all the persons decreased by 5 kg. find the average weight of first 20 persons?  Choose the correct choice from the following answers:
A) 55 B) 56 C) 57 D) 58 E) 59
<gadget id="calculator">20 + 1</gadget>
<output>21</output>

<gadget id="calculator">21 * 5</gadget>
<output>105</output>

<gadget id="calculator">105 - 46</gadget>
<output>59</output>

<result>E</result>
the average weight of 20 persons sitting in a boat had some value. a new person added to them whose weight was 46 kg only. due to his arrival, the average weight of all the persons decreased by 5 kg. find the average weight of first 20 persons?
subtract(multiply(add(20, const_1), 5), 46)
"20 x + 46 = 21 ( x – 5 ) x = 59 answer : e"