ratio between rahul and deepak is 4 : 3 , after 6 years rahul age will be 42 years . what is deepak present age .
"explanation : present age is 4 x and 3 x , = > 4 x + 6 = 42 = > x = 9 so deepak age is = 3 ( 9 ) = 27 option e"
divide(multiply(subtract(42, 6), 3), 4)