a candidate got 34 % of the votes polled and he lost to his rival by 640 votes . how many votes were cast ?
"let x be the total number of votes . 0.34 x + 640 = 0.66 x 0.32 x = 640 x = 640 / 0.32 = 2000 the answer is a ."
divide(640, subtract(subtract(const_1, divide(34, const_100)), divide(34, const_100)))