Question
Mixture ‘A’ consists of petrol and acid in a 4:1
ratio, while Mixture ‘B’ contains petrol and acid in a ratio of 5:3. If these two mixtures are combined in a ratio 4:3 to form Mixture ‘C’, what is the percentage of petrol in Mixture ‘C’?Solution
Proportion of petrol present in mixture ‘A’ = (4/5)And proportion of petrol present in mixture ‘B’ = (5/8)Let the quantity in which mixture ‘A’ and mixture ‘B’ are mixed be ‘4x’ litres and ‘3x’ litres, respectively.So, percentage of petrol present in mixture ‘C’ = [{(4/5) × 4x + (5/8) × 3x} ÷ (4x + 3x)] × 100= [{(16x/5) + (15x/8)} ÷ 7x] × 100= {(128x + 75x)/(40 × 7x)} × 100= {(203x/40 × 7)} × 100 = 72.5%
Which of the following operating systems is an open-source?
In which of the following network topology, all devices on a network are connected to a single continuous cable?
Storage device found inside the computer is
In the field of computer/IT in open system interconnection on models, there are ____ layers.
Which layer of the OSI model provides the interface between the user and the network?
The largest unit of storage is
The most suitable type of network that phone lines would us is
_________ can be used to store a large number of files in a small amount of storage space.
Which of the following is not a type of operating system?
In an operating system, which memory management technique swaps out entire processes to free up memory space?
