a man whose bowling average is 12.4 , takes 3 wickets for 26 runs and there by decreases his average by 0.4 . the number of wickets taken by him before his last match is ?
"12.4 * x + 26 = ( 3 + x ) 12 solve equation x = 25 answer : c"
divide(subtract(multiply(floor(12.4), 3), 26), subtract(12.4, floor(12.4)))