Question
The average of 7 numbers is 28. The average of first
three of them is 23 and the last three of them is 42. Then the fourth number is:Solution
We know that, Average = Sum of all quantities/number of quantities Average of 7 numbers = 28 ∴ Sum of all numbers = 28 × 7 = 196 Average of first 3 numbers is 23. Sum of first 3 numbers = 3 × 23 = 69 Average of last 3 numbers os 42. Sum of last 3 numbers = 3 × 42 = 126 4th number = 196 – 69 – 126 = 1
Which device is used to convert internet services into different paths?
Which protocol is responsible for converting the logical address to a physical address?
Video Graphics Array connectors are those which connect the monitor to a computer's video card and has ________ holes.
Which function key is used to refresh the screen?
What is the full form of DFD?
________ is a type of memory circuitry that holds the computer’s start-up routine.
In which option, we can show and print the Gridlines?
MPG is an file extension of which type of files?
Who first developed QWERTY keyboard used in computers and phones?
What does Router do in a network?
Relevant for Exams:
