Question
Quantity of water in a 420 litres mixture (Milk + Water)
is 60 litres less than the quantity of milk in it. Find the quantity of water to be mixed so that the quantity of milk in the mixture becomes 40% of the whole mixture.Solution
Let milk = M, water = W Given: M + W = 420 W = M − 60 So: M + (M − 60) = 420 2M = 480 M = 240 litres W = 180 litres Now add x litres water. New milk = 240 New total = 420 + x Given milk becomes 40% of whole mixture: 240 = 40% of (420 + x) 240 = 0.40(420 + x) 240 = 168 + 0.40x 72 = 0.40x x = 180 litres
What is malware?
Given below are two statements
Statement I: The use of ICT in organizing teaching-learning programmes in the universities has the potential ...
_______ selects, interprets and executes instruction in CPU
Which Windows utility allows users to browse folders and manage files on a computer?
The minimum number of page frames that must be allocated to a running process in a virtual memory environment is determined by ____________
JS Kilby developed which chips?
The shortcut for copying selected content is:
A device needed to communicate with computers using telephone lines is?
In Google Sheets, which feature allows the warden to see when and who last edited any given cell?
Which of the following devices uses flash memory technology?
Relevant for Exams:
