Problem: there is enough provisions for 600 men in an army camp for 25 days . if there were 300 men less , how long will the provision last ?
Rationale: "exp : we have , m 1 d 1 = m 2 d 2 600 * 25 = 300 * d 2 d 2 = 600 * 25 / 300 = 50 days . answer : d"
annotated_formula: divide(multiply(600, 25), 300)