workers decided to raise rs . 3 lacs by equal contribution from each . had they contributed rs . 50 eachextra , the contribution would have been rs . 3.20 lacs . how many workers were they ?
"n * 50 = ( 320000 - 300000 ) = 20000 n = 20000 / 50 = 400 b"
divide(multiply(multiply(subtract(3.20, 3), const_1000), const_100), 50)