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Computer Knowledge Questions And Answers Sample Test 1

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Computer Knowledge Test 1

You have scored 3 out of 10
You Scored:2
Total Questions:2
Attended Questions:2
1. Hardware that adds two numbers is _________

2. The labelled price of a product is Rs. 7500. If it is sold at 20% discount and the dealer earns 25% profit, Find its cost price.

Explanation:

S.P of the product = (80/100) x 7500 = Rs. 6000 Proft = 25 % => C.P = (100/125) x 6000 = Rs. 4800

3. President Pranab Mukherjee returned 3 bills for reconsideration of which state legislative assembly?

Explanation:

President Pranab Mukherjee in June 2016 returned 3 bills to Manipur Legislative Assembly for reconsideration.

4. A man sold an item for Rs. 1500 at a loss of 25%. What will be the selling price of same item if he sells it at a profit of 20 %

Explanation:

S.P = 75 % of CP

=> 75 x CP /100= 1500

=> CP = 2000

20 % of CP = (20/100) x 2000 = 400

SP = 2000 + 400 = 2400

5. (1.2)^2 + (1.3)^2 + (2.4) x (1.3) = ?

Explanation:

(1.2)2 + (1.3)2 + (2.4) x (1.3) = = (1.2 + 1.3)2 = (2.5)2 = 6.25

6. Which state Assembly has passed through a headcount the Bill to conduct indirect election of Mayors on 23 June 2016?

Explanation:

The Tamil Nadu Assembly has passed through a headcount the Bill to conduct indirect election of Mayors on 23 June 2016.

7. Besides the items ____________ from the cupboard, documents were _____ all over the floor

8. (0.2)2 / (0.008) = (0.2)? / (0.04)3 .

Explanation:

(0.2)2 / (0.2)3 = (0.2)x / (0.2)6 => (0.2)-1 = (0.2)x-6 => x-6 = -1 => x= 5

9. Find the average of the following set of score: 188, 128, 155, 168, 199, 178, 145, 168

Explanation:

188 + 128 + 155 + 168 + 199 + 178 + 145 + 168
= 1329 / 8
= 166.125

Approx, 166.13

10. 45 % of 840 x ? = 38178

Explanation:

45 % of 840 x k = 38178 (45/100) x 840 x k = 38178 (37800/100) x k = 38178 K = 38178 / 378 = 101

11. In a disk, each block of data is written into ____

12. George Bush gave an impression to his subjects that his army commanders were given the autonomy to decide-

13. Sunil reminded him __________his promise but he was quite in different to _____ Sunil said

14. Find the simple interest on Rs. 1080 at 10 % per annum for 9 months

Explanation:

Principal : 1080 Rate of interest : 10 Number of months : 9 Simple Interest for 1 year = (1080 x 1 x 10) / 100 Simple Interest for 1 year = 108 Simple interest for 9 months = (9/12) x SI Simple Interest for 9 months = 81

15. Which of the following is not an operating system?

16. According to India Development Update 2016,how many percentage India's economic growth to be expected in 2016-2017?

Explanation:

According to India Development Update 2016,It expects India's economic growth to be at 7.6 percent in 2016-2017, followed by a modest acceleration to 7.7 percent in 2017-2018.

17. According to India Development Update 2016,how many percentage India's economic growth to be expected in 2016-2017?

Explanation:

The World Bank Group has released the mid-year edition of India Development Update 2016 : Financing Double-Digit Growth on 20 June 2016.

18. Even if a man is found ______________ by a court, he can ___________to a higher court

19. Read each sentence to find out whether there is any error in it. The error, will be in one part of sentence. The option mentioned in that part will be your answer.

20. The product of two consecutive even numbers is 15128. Find the average of these two numbers.

Explanation:

We wil go from the option. We will eliminate 133 and 139, since their product will exceed 16900.

Now the tug of war is between 123 and 127.

Lets take 123, if 123 is the average then the consecutive even numbers will be 122 and 124.

Now, observe, 122 x 124 = ....8, that is the resulting number ends with 8.

Now you try for 127.

(HINT : The consecutive even number with 127 as average us 126 and 128)

The two numbers are 122 and 124. Average is 123.

21. When a bus started from the first stop, the number of male passengers to the number of female passengers was 3: 1. At the first stop, 16 passengers got down and 6 more female passengers got in. The ratio of the male to female passengers now became 2:1. What was the total number of passengers in the bus when it started from the first stop?

Explanation:

Males = 3x, Females = x.

First stop, m males left, f females left the bus and 6 females got.

No. of females = x - f + 6

(3x-m) / (x-f+6) = 2/1

=> 3x -2 = 2x - 2f + 12

Also m + f=16

x = 28 - 3f,

f=4 and x= 16 Number of passengers in the beginning = 4x = 64

22. Specialized programs that allow particular input or output devices to communicate with the rest of the computer system are called ____

23. The Government of India has announced a new CNG retrofitment scheme for the two-wheelers in which city?

Explanation:

The Government of India has announced a new CNG retrofitment scheme for the two-wheelers in Delhi 23 June 2016 .

24. What is the difference between the number of tickets of Movie D sold in Kolkata and the number of tickets of movie B sold in Lucknow

Explanation:

Required difference = 27-21 = 6 (in terms of thousand) = 6000

25. How many words can be formed with or without meaning by taking all the letters from the word TAKEN ?

Explanation:

There are totally 4 letters in the word TAKEN T, A, K, E and N. No. Of Words = 5 x 4 x 3 x 2 x 1 = 120

26.

27. Which state government has approved a proposal of the Panchayati Raj department to add 500 new gram panchayats before the 2017?

Explanation:

Odisha government has approved a proposal of the Panchayati Raj department to add 500 new gram panchayats before the 2017

28. The Union Cabinet has approved proposal of extending the deadline for implementing the UDAY scheme to which year?

Explanation:

The Union Cabinet has approved proposal of extending the deadline for implementing the Ujjwal Discom Assurance Yojana (UDAY) by a year to March 31, 2017.

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