An automobile plant contracted to buy shock absorbers from two suppliers X and Y. X supplies 

60% and Y supplies 40% of the shock absorbers. All shock absorbers are subjected to a quality 

test.
The ones that pass the quality test are considered reliable Of X's shock absorbers, 96% are 

reliable.
Of Y's shock absorbers, 72% are reliable. 

The probability that a randomly chosen shock absorber, which is found to be reliable, is made by
Y is