GATE Practice Question and Answer
8Q: Number Challenge 1890 05b5cc6d3e4d2b4197774e4f0
5b5cc6d3e4d2b4197774e4f0- 19false
- 211true
- 313false
- 415false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "11"
Explanation :
Answer: B) 11 Explanation: Half the Product of Number in the upper & lower box gives the number in the middle box. i.e. 18 x 4/2 = 36 15 x 6/2 = 45 In the same way 8 x N/2 = 44 => N = 11.
Q: Absolute value of 9? 1889 05b5cc675e4d2b4197774c143
5b5cc675e4d2b4197774c143- 10false
- 29true
- 38false
- 4-9false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "9"
Explanation :
Answer: B) 9 Explanation: Absolute value of a number : It means that the distance of a number from 0 on a number line. Here absolute value of 9 is that on a number line 9 is 9 units away from 0. Hence its absolute value is 9. Similarly, absolute value of -9 means -9 is also 9 units away from the 0 on number line. Hence, absolute value of -9 is also 9. Hence, the absolute value of 9 is 9.
Q: What is the meaning of the four colour dots in the news paper? 1889 05b5cc683e4d2b4197774c2a6
5b5cc683e4d2b4197774c2a6- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
If you read newspaper daily, then you may be aware of the four coloured dots on the corner of the newspaper. The four dots CMYK — blue (Cyan), pink (Magenta), Yellow and black (Kalio) are registration marks used during printing to help ensure the print is aligned properly. Any colour can be obtained by adding the correct proportion of these four colours. CMYK is used as a base for the colours used in printing newspapers, and these four colours are often printed on the paper in either a heart, dot, or square shape. To print an image, the plates of all these colours are laid out on a page separately and lined up in the same spot while printing. If those four dots are blur or you find the colours overlapping on the image it means the printing is not good. To print an accurate and perfect image, the colors and shape must be arranged precisely and must be claear sharp in order to get the best output. That's why CMYK is also called registration mark. As physically checking all the pages of the paper is not possible for a printer who prints number of news papers daily, he just checks these dots.
Q: 12 students of class IX took part in GK quiz. If the number of boys is 4 more than the number of girls. Find the number of boys and girls took part in the quiz ? 1887 05b5cc6bfe4d2b4197774da79
5b5cc6bfe4d2b4197774da79- 17, 5false
- 29, 3false
- 38, 4true
- 46, 6false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "8, 4"
Explanation :
Answer: C) 8, 4 Explanation: Let the number of girls = x => x + x + 4 = 12 => 2x = 8 => x = 4 => Number of girls = 4 => Number of boys = 4 + 4 = 8
Q: If 1/a+1/b+1/c = 1/(a+b+c) where a+b+c not equals '0', abc not equals '0', What is the value of (a+b) (b+c) (a+c) ? 1887 05b5cc709e4d2b4197774f258
5b5cc709e4d2b4197774f258- 13false
- 22false
- 31false
- 40true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "0"
Explanation :
Answer: D) 0 Explanation: Let assume the value of a,b &c that will satisfy the equation.so a=1,b=1,c= -1 or a=1,b= -1 &c=1 or a= -1,b=1,c=1here all three cases satisfy the equationassume any one a=1,b=1,c= -1 Hence (a+b)(b+c)(c+a)=(1+1)(1-1)(-1+1) = 0
Q: DNA is made of repeating units called 1887 05b5cc666e4d2b4197774bed5
5b5cc666e4d2b4197774bed5- 1Nucleotidestrue
- 2Ribozomesfalse
- 3Peptidesfalse
- 4Aminoacidsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Nucleotides"
Explanation :
Answer: A) Nucleotides Explanation: DNA is a very long chain polymer made up of thousands of repeating units called nucleotides. Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base. The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.
Q: What approximate value will come in place of question mark (?) in the following question ? (49.001)2 = ? 1887 05b5cc6c7e4d2b4197774dec3
5b5cc6c7e4d2b4197774dec3- 12500false
- 22400true
- 32600false
- 42300false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "2400"
Explanation :
Answer: B) 2400 Explanation: Given (49.001)2 = ? => =~ 49 x 49 =~ 2401 =~ 2400
Q: Which technology is used in compact disks? 1887 15b5cc690e4d2b4197774c427
5b5cc690e4d2b4197774c427- 1Lasertrue
- 2Mechanicalfalse
- 3Electricalfalse
- 4Electro magneticfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Laser"
Explanation :
Answer: A) Laser Explanation: Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. These are actually made to replace floppy disks that were used to store files and programs from the computer. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). These CD's uses Laser technology.

