An elevator in a mall can carry 12 adults or 24 children at one time. Suppose there are 5 adults in the lift, how many additional children can be accommodated?
Huong wants to make 10 metres long banner for his brother's birthday party. So, he tapes together 25 centimetres long pieces of construction paper. How many pieces of construction paper would he need?
A frog has fallen into a ditch which is 9meters deep. Each day the frog climbs 5meters and then falls back by 4meters. In how many days will the frog reach the top?