Problem: the ratio of 2 numbers is 2 : 5 and their h . c . f . is 6 . their l . c . m . is ?
Rationale: "let the numbers be 2 x and 5 x their h . c . f . = 6 so the numbers are 2 * 6 , 5 * 6 = 12,30 l . c . m . = 60 answer is e"
annotated_formula: sqrt(divide(6, add(power(5, 2), add(power(2, 2), power(2, 2)))))