Question
Quantity I. Two pipes A and B can fill a tank in 12
minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 9 minutes? Quantity II. Two pipes A and B can fill a tank in 24 minutes and 48 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?Solution
Quantity I. Let B be closed after x minutes. Let total capacity of tank = LCM (12 & 16) = 48 L So A’ 1 min work = 48/12 = 4L B’s 1 min work = 48/16 = 3L So as per the question, 4×9 +3×x= 48 or 3x = 12 or x =4min Quantity II. Let B be closed after minutes. Let total capacity of tank = LCM (24 & 48) = 48 L So A’ 1 min work = 48/24 = 2L B’s 1 min work = 48/48 = 1L So as per the question, 18×2 +1×x= 48 or x = 12 Hence Quantity I < Quantity II
A system has a page size of 2KB. A logical address is 32 bits. How many bits are used for the page offset?
If signal-to-interference ratio is 5 dB, signal power is 8 dB, then what is the interference power in dB?
What is the purpose of the #include
directive in C/C++ programming? Simplify the Boolean expression.
Y= AB+A(B+C)+B(B+C)
What does the Hamming distance measure in the context of information theory and coding?
Fill in the correct option for 25 blank space.
In pipelining, the CPU executes each instruction in a series of following stages: Instruction Fetching (IF) —–> Instruction Decoding (ID) —–> In...
A Decision Support System (DSS) is best described as:
What is the primary concept behind the ALOHA protocol in network communication?
fill the blank for 19.
Relevant for Exams:
