#test_series

Question

Consider a scenario where 3 processes P₁, P₂  and P₃ are sharing   X  resources of the same type. The maximum need of the three processes is 4, 8, 6. It is also known that the maximum combined need of both processes P₁ and P₂ at a time is 9 and they always execute only in a combined manner. Then the value of  X+ 7 is ________.

Comments

21....

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plz explain yes you are right

Answer 1

here we have to select a number randomly

given p1 requires 4

p2 requires 8

p3 requires 6

p1+p2 both require minimum 9 resources at same time

so let us assume x=10

process	allocated	required
p1	3	1
p2	6	2
p3	1	5

so it may lead to unsafe state 

now let us assume x=12 

if we create a resource allocation table then the system will be always in safe state

so x=12 and x+7=19