Question

A bag contains 400 coloured counters. The counters are either yellow, brown or green. There are 92 yellow counters in the bag. The probability that a brown counter is chosen from the bag is 0.13 Calculate the number of green counters in the bag.

Answer 1

The number of green counters in the bag is:

$Ng = 400 - 92 - 0.13×400 = 256$ units.