the ratio of a and b is 5 : 3 . after 2 years their ratio is 3 : 2 . what is the age of b ?
the ratio of a and b is 5 x and 3 x years . after 2 years , their ratio will be 3 and 2 . ( i . e ) ( 5 x + 2 ) / ( 3 x + 2 ) = 3 / 2 10 x + 4 = 9 x + 6 x = 2 b ' s age = 3 x = 3 ( 2 ) = 6 years answer is option c
subtract(divide(multiply(multiply(5, 2), 3), 2), multiply(3, 3))