there is enough provisions for 700 men in an army camp for 25 days . if there were 300 men less , how long will the provision last ?
"exp : we have , m 1 d 1 = m 2 d 2 700 * 25 = 300 * d 2 d 2 = 700 * 25 / 300 = 59 days . answer : d"
divide(multiply(700, 25), 300)