Problem: 60 boys can complete a work in 24 days . how many men need to complete twice the work in 20 days
Rationale: "one man can complete the work in 24 * 60 = 1440 days = one time work to complete the work twice it will be completed in let m be the no . of worker assign for this therefore the eqn becomes m * 20 = 2 * 1440 m = 144 workers answer : a"
annotated_formula: divide(multiply(60, multiply(24, const_2)), 20)