the average of 7 consecutive numbers a , b , c , d , e , f and g is 9 . what percent of g is a ?
explanation : in such a case the middle number ( d ) is the average ∴ d = 9 and a = 6 and g = 12 required percentage = 6 / 12 x 100 = 50.0 answer : option c
multiply(divide(subtract(add(9, floor(divide(7, const_2))), subtract(9, floor(divide(7, const_2)))), add(9, floor(divide(7, const_2)))), const_100)