MADE EASY MOCK

Question

how to solve this??

Answer 1

Answer is 6

Comments

how did you find delay between y and z??

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garimanand initially Y is 1 and X is 1 at 10ns so And gate will take delay of 10ns to switch Z so at 20ns Z is 1.

then Inverter will again take 5 ns to switch Y so at 25ns Y became 0 this goes on 

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ok means y and z both are having 15ns delays because of not gate delay of 5ns and 10ns delay of AND gate z is taking 15ns delay . and for Y we need z which is taking 10ns because of AND gate and NOt gate consuming 5ns .hence both are having 15ns delay.

please correct me if i am wrong

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THank you so much Mk Utkarsh.finally i got it.