average of 10 matches is 34 , how many runs one should should score to increase his average by 5 runs .
"explanation : average after 11 innings should be 39 so , required score = ( 11 * 39 ) - ( 10 * 34 ) = 429 - 340 = 89 answer : option d"
subtract(multiply(add(34, 5), add(10, const_1)), multiply(10, 34))