two numbers are in the ratio 3 : 4 . if their l . c . m . is 84 . what is sum of the numbers ?
"explanation : let the numbers be 3 x and 4 x lcm of 3 x and 4 x = 12 x ( since lcm of 3 and 4 is 12 . hence lcm of 3 x and 4 x is 12 x ) given that lcm of 3 x and 4 x is 84 = > 12 x = 84 = > x = 84 / 12 = 7 sum of the numbers = 3 x + 4 x = 7 x = 7 x 7 = 49 answer : option a"
add(multiply(multiply(3, const_4.0), const_100), multiply(4, 84))