average of 10 matches is 32 , how many runs one should should score to increase his average by 4 runs .
"explanation : average after 11 innings should be 36 so , required score = ( 11 * 36 ) - ( 10 * 32 ) = 396 - 320 = 76 answer : option b"
subtract(multiply(add(32, 4), add(10, const_1)), multiply(10, 32))