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 ^@ 9 \space meters ^@ deep. Each day the frog climbs ^@ 5 \space meters ^@ and then falls back by ^@ 4 \space meters ^@. In how many days will the frog reach the top?