Problema Solution
A supermarket shelf has room for just 72 small packets of brewed tea bags.
On tuesday morning, when the supermarket opens, there are 57 packets of tea on the shelf.
During the day,
125 packets are sold and
2 cartons, each containing 48 packets,
are used to keep the shelf stocked up.
Is there any space on the shelf to unpack another carton of 48 packets?
Answer provided by our tutors
the total number of packets of tea - the number of sold packets = the number of packets left on the shelf
(57 + 2*48) - 125 = 28 packets left on the shelf
since the shelf has room for 72 packets the space left will be for 72 - 28 = 44 packets of tea
1 carton contains 48 packets and 48 > 44 follows there is not enough space for another 48 packets (another carton) to unpack since
48-44 = 4 packets will not fit on the shelf.