instead of multiplying a number by 2 , the number is divided by 10 . what is the percentage of error obtained ?
let the number be x the right number is 2 x the wrong number is x / 10 error is ( 2 x - x / 10 ) = 19 x / 10 percentage of error is ( ( 19 x / 10 ) / 2 x ) * 100 = 95 % answer : c
subtract(const_100, multiply(divide(divide(10, 10), multiply(2, const_10)), const_100))