The parking lot of the Mall has a capacity of 1925 cars. On Tuesdays the ratio of occupied spots to empty spots in the parking lot was 12:23. The number of additional cars that could park there is

A frog has fallen into a ditch which is 12 meter deep. Each day the frog climbs 5 meter and than falls back by 2 meter. In how many days will the frog reach the top?