the average of runs of a cricket player of 10 innings was 34. how many runs must he make in his next innings so as to increase his average of runs by 4? Choose the correct choice from the following options:
A) 78 B) 79 C) 85 D) 87 E) 89
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">4 + 34</gadget>
<output>38</output>

<gadget id="calculator">11 * 38</gadget>
<output>418</output>

<gadget id="calculator">10 * 34</gadget>
<output>340</output>

<gadget id="calculator">418 - 340</gadget>
<output>78</output>

<result>A</result>
the average of runs of a cricket player of 10 innings was 34. how many runs must he make in his next innings so as to increase his average of runs by 4?
subtract(multiply(add(10, const_1), add(4, 34)), multiply(10, 34))
"explanation : average = total runs / no . of innings = 34 so , total = average x no . of innings = 34 x 10 = 340 . now increase in avg = 4 runs . so , new avg = 34 + 4 = 38 runs total runs = new avg x new no . of innings = 38 x 11 = 418 runs made in the 11 th inning = 418 - 340 = 78 answer : a"