A fair spinner has eight equal sections.
The sections are either blue (B), yellow (Y) or green (G).
a)
The spinner is spun.
On which colour is it least likely to land?
b)
Write down the probability that the spinner lands on green.
Give your answer as a fraction.

At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?