The mixing vat in a factory receives liquid ingredients through six separate valves-labeled R, S, T, U, Y and Z each of which has exactly two settings: Open and closed. The mixing vat operator must ensure that each valve is set open or closed according to the following conditions:
i. If T is open, both S and Z must be closed;
ii. R and Z cannot both be closed at the same time.
iii. If Y is closed, Z must also be closed;
iv. S and U cannot both be pen at the same time.
If R is closed and U is open, which of the following must be true?
১ ক্লিকে প্রশ্ন, শীট, সাজেশন ও
অনলাইন পরীক্ষা তৈরির সফটওয়্যার!
শুধু প্রশ্ন সিলেক্ট করুন — প্রশ্নপত্র অটোমেটিক তৈরি!
আপনি আমাকে যেকোনো প্রশ্ন করতে পারেন, যেমনঃ
Are you sure to start over?