A Port had provisioned food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last is:
Explanation To factorize the expression y^2 + y – 6, we need to find two numbers whose product is -6 and whose sum is 1 (the coefficient of the middle term). These numbers are 3 and -2, so we can write: y^2 + y – 6 = (y + 3)(y – 2)