GATE Practice Question and Answer
8Q: In a 48 ltr mixture, the ratio of milk and water is 5:3. How much water should be added in the mixture so as the ratio will become 3:5 ? 2105 05b5cc6c2e4d2b4197774dbff
5b5cc6c2e4d2b4197774dbff- 124 litfalse
- 216 litfalse
- 332 littrue
- 48 litfalse
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Answer : 3. "32 lit"
Explanation :
Answer: C) 32 lit Explanation: Given mixture = 48 lit Milk in it = 48 x 5/8 = 30 lit => Water in it = 48 - 30 = 18 lit Let 'L' lit of water is added to make the ratio as 3:5 => 30/(18+L) = 3/5 => 150 = 54 + 3L => L = 32 lit.
Q: Which of the following is not a Jovian planet? 2105 05b5cc69de4d2b4197774c94c
5b5cc69de4d2b4197774c94c- 1Jupiterfalse
- 2Earthtrue
- 3Saturnfalse
- 4Neptunefalse
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Answer : 2. "Earth"
Explanation :
Answer: B) Earth Explanation: Earth is not a Jovian Planet as it is a Terrestrial planet. A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements. Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune. Though these planets vary in terms of size, mass, and composition, they all share certain characteristics that cause them to differ greatly from the terrestrial planets located in the inner Solar System.
Q: Ravi, Anand and Pranay are running a business firm in partnership. What is Anand's share in the profit earned by them? a. Ravi, Anand and Pranay invested the amounts in the ratio of 2 : 4 : 7. b. Pranay's share in the profit is Rs. 8750. 2105 05b5cc767e4d2b4197774fe31
5b5cc767e4d2b4197774fe31- 1Only a is sufficientfalse
- 2Neither a nor b is sufficientfalse
- 3Only b is sufficientfalse
- 4Both a and b sufficienttrue
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Answer : 4. "Both a and b sufficient"
Explanation :
Answer: D) Both a and b sufficient Explanation: Given Pranay's profit in the share is Rs. 8750 But given that their investments are in the ratio 2:4:7 713×P = 8750 P = 16250 Now Anand's share = 413×16250 = Rs.5000 Thus both staements a and b are sufficient to answer this question.
Q: Modem is used mostly for ? 2104 05b5cc69be4d2b4197774c7c8
5b5cc69be4d2b4197774c7c8- 1A modern empty memory modulesfalse
- 2Connecting to internettrue
- 3Mostly for file systemfalse
- 4All the abovefalse
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Answer : 2. "Connecting to internet"
Explanation :
Answer: B) Connecting to internet Explanation: A modem is nothing but short for Modulator and Demodulator. It is used mostly for connecting to the internet. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.
Q: Energy is measured in units called 2104 05b5cc658e4d2b4197774bdcd
5b5cc658e4d2b4197774bdcd- 1Newtonsfalse
- 2Wattsfalse
- 3Joulestrue
- 4Ohm/mtrfalse
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Answer : 3. "Joules"
Explanation :
Answer: C) Joules Explanation: Energy is measured in units called Joules. Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre. 1 Joule = 107 ergs or 0.7377 foot-pounds.
Q: What is a Common Multiple? 2103 05b5cc6b5e4d2b4197774d548
5b5cc6b5e4d2b4197774d548- Show AnswerHide Answer
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Answer :
Explanation :
If the Multiples for two or more numbers which are Common, then those Multiples are said to be Common Multiples. For Example : Multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30,... Multiples of 5 are 5, 10, 15, 20, 25, 30,... Here common multiples of 3 & 5 upto 30 are 15, 30.
Q: The average age of husband, wife and their child 3 years ago was 24 years and that of wife and child 5 years ago was 25 years. The present age of the husband is: 2102 05b5cc6bce4d2b4197774d8d4
5b5cc6bce4d2b4197774d8d4- 121 yrstrue
- 227 yrsfalse
- 329 yrsfalse
- 431 yrsfalse
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Answer : 1. "21 yrs"
Explanation :
Answer: A) 21 yrs Explanation: Sum of ages of husband, wife and child= (24 × 3) + 9 = 81 years Sum of ages of wife and child => 25 × 2 + 10 = 50 + 10 = 60 years Age of husband = 81 - 60 = 21 years.
Q: Bacteria divide by 2102 05b5cc6a6e4d2b4197774cde8
5b5cc6a6e4d2b4197774cde8- 1Binary Fissiontrue
- 2Spirillafalse
- 3RNAfalse
- 4Fusionfalse
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Answer : 1. "Binary Fission"
Explanation :
Answer: A) Binary Fission Explanation: Bacteria divided and reproduce by Binary fission. In this process, the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two replicates.

