Three numbers are in the ratio of 1 : 2 : 3. The product of the three numbers is 1296. What is the sum of the three numbers?

36 30 72 24

36

Here, A : B : C = 1 : 2 : 3 ⇒ Product of A, B and C = 1296 ⇒ \( {6x }^{3 } \) = 1296 ⇒ \( {x }^{3 } \) = 216 ⇒ x = 6, ⇒ Sum of A + B + C = 1 + 2 + 3 = 6 x 6 = 36.