Question
Which of the following is not an input device for a
computer?Solution
Input devices of Computer help in inputting data, These include keyboard, mouse, joystick, light pen, track ball, scanner, etc. Output devices include Monitor, printers, etc.
Class 'A' has 108 students, and the ratio of girls to boys is 1:2. If the average number of boys in classes 'A' and 'B' is 144, and the average number o...
A sphere of radius 21 cm is melted and recast to form ‘n’ numbers of smaller cuboids of dimension 21 cm × 11 cm × 7 cm. Find the value of ‘n’....
An initial investment grows to four times its original amount in 6 years under compound interest. How many years will it take for the investment to grow...
Sanjay earns Rs. 40,000 per month. He spends 20% of his income on conveyance. From the remaining amount, he allocates 25% for groceries. How much does h...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
If x + (1/x) = 9 then x2 + 1/x2 = ?
A total of Rs. 1,400 was meant to be distributed between A and B in the ratio of 3:7. However, due to an error, it was instead divided in the ratio of 3...
The speed of a boat in still water and the speed of the stream are in the ratio of 5:2. If the boat's speed while moving downstream is 84 km/hr, how lon...
'A' can complete a task in 24 days, while 'B' can finish the same task in 36 days. However, 'A' works at only 2/3 of his usual efficiency, and 'B' opera...
Calculate the difference between the area of a wall having dimension 22 cm X 23 cm and the area of a spherical bowl having diameter 14cm.
