Originally Posted by

**Deadpool** Spares of a particular component are produced by two firms , Bestbits and Lesserprod.

Tests show that, on average, 1 in 200 components produced by Bestbits fail within one year

of fitting, and 1 in 50 components produced by Lesserprod fail within one year of fitting.

Given that 20 per cent of the components sold and fitted are made by Bestbits and 80 per

cent by Lesserprod, what is the probability that a component chosen at random from those

sold and fitted will fail within a year of fitting?

Find the proportion of components sold and fitted that would need to be made by Bestbits

for this probability to be 0.01