Hello everyone
I have two questions I hope to help me in solving

Q1 :

Q2

http://im15.gulfup.com/2011-12-15/1324017326121.jpg

 

Do you understand the question?

Can you do the flip-flop version?

You need to show a attempt at a solution before most here will assist. Search the forum for posts similar to yours, theres a list at the bottom of each thread.

 

Yes, I understand second question, I was able to solve it. But the first question I am unable to resolve it and I can not understand

 

Post what you think will be the ouputs of Qd-Qa out of the 4 bit counter.

Break it into small parts. Look at Wikipedia for how the counter works.

 

ok , thank U

 

Once you know what the output of the counter is (simple binary up counter)

Take a glance at the Datasheet for a 1 of 10 Decoder to find the truth table, to decide what the output will be.

Don't be afraid to ask questions if you don't understand bits of it.