IIT JEE Practice Question and Answer
8Q: Energy is measured in units called 1784 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: How is my father's mother's only daughter-in-law's daughter's father related to me ? 1783 05b5cc6e3e4d2b4197774ec9d
5b5cc6e3e4d2b4197774ec9d- 1Son-in-lawfalse
- 2Unclefalse
- 3Sonfalse
- 4Fathertrue
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Answer : 4. "Father"
Explanation :
Answer: D) Father Explanation: My fahter's mother's only daughter-in-law is my father's wife i.e. my mother. My mother's daughter is my sister. My sister's father is my father.
Q: At an examination in which maximum marks are 500. K got 10% less than L, L got 25% more than M and M got 20% less than N. If K got 360 marks what percentage of marks was obtained by N ? 1783 05b5cc6c9e4d2b4197774dfab
5b5cc6c9e4d2b4197774dfab- 180true
- 287false
- 378false
- 476false
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Answer : 1. "80"
Explanation :
Answer: A) 80 Explanation: Let marks obtained by N = x M's marks = 0.80x L's marks = 1.25 (0.80x) K's marks = (0.90) (1.25) (0.80x) = 0.9x But 0.9x = 360 ⇒ x = 400 Percentage of Marks obtained by N = 400 x 100/500 = 80%
Q: The cultivation of crops in regions with an annual rainfall of 750mm is called as ____. 1783 15b5cc6cee4d2b4197774e25b
5b5cc6cee4d2b4197774e25b- 1Wet Farmingfalse
- 2Intensive Farmingfalse
- 3Rain Fed Farmingfalse
- 4Dry Land Farmingtrue
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Answer : 4. "Dry Land Farming"
Explanation :
Answer: D) Dry Land Farming Explanation:
Q: Rajeev works in the security section of a bank. Everybody in the company is either an IT person or a finance person or both. The assignment that rambo is currently working on has five people from finance and three people from IT,including him. Of the 26 finance people in his department, a total of 16 are in his section. Of the 18 IT people in his department, 10 are not in Rajeev section. There is nobody in Rajeev section who is both a finance person and an IT person. Fifteen people in his department do not belong to his section. Questions : 1)How many IT people are there in Rajeev's department who are not a finance person and are not in Rajeev's section ? 1782 05b5cc718e4d2b4197774f49f
5b5cc718e4d2b4197774f49f- 11false
- 23false
- 35false
- 48 2)what number finance people in Rajeev's department are not in his section?false
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Answer :
Explanation :
Finance person in his department = 26IT persons in his department = 18Finance person in his section = 16IT persons in his section = 8Total in his section = 16+8 = 24Total people in his depatment = 26+18 = 44only 15 people in his dept are not in his secand 44-24 = 20so 20-15 = 5 people belong to both finance and IT Answer 1) is 'C'. IT persons in his department = 18(total IT) - 8(section) - 5(both) = 5 Answer 2) is 'B' Finance persons not in his section = 26 - 16 = 10
Q: Two numbers are 35% and 42% are less than a third number .How much percent is the second number less than the first ? 1782 05b5cc6dce4d2b4197774e96f
5b5cc6dce4d2b4197774e96f- 110.769 %true
- 211.23 %false
- 310.4 %false
- 49.87 %false
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Answer : 1. "10.769 %"
Explanation :
Answer: A) 10.769 % Explanation: I II III 65 58 100 65 -------- 7100 ------ ? => 10.769%
Q: How many cups in a quart? 1782 05b5cc6ace4d2b4197774d0c0
5b5cc6ace4d2b4197774d0c0- 12false
- 23false
- 34true
- 41false
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Answer : 3. "4"
Explanation :
Answer: C) 4 Explanation: 1 quart = 4 cups. => We know that 1 quart = 2 pints But 1 pint = 2 cups => 2 pints = 2 x 2 cups = 4 cups = 1 quart.
Q: Which path through the carbon cycle is possible? 1782 05b5cc695e4d2b4197774c505
5b5cc695e4d2b4197774c505- 1Animal ----> Plant ----> Atmospherefalse
- 2Plant ----> Animal ----> Atmospheretrue
- 3Atmosphere ----> Plant ----> Animalfalse
- 4Plant ----> Atmosphere -----> Animalfalse
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Answer : 2. "Plant ----> Animal ----> Atmosphere"
Explanation :
Answer: B) Plant ----> Animal ----> Atmosphere Explanation: During daylight hours, plants capture carbon dioxide from the atmosphere and use it to make carbohydrates which is stored as starch in the plant. Animals feed on the plants and extract the carbohydrates through their digestive system. The carbohydrates, namely glucose, are used by the animals for production of ATP through cellular respiration. Cellar respiration in the animals produces carbon dioxide as a waste product. The carbon dioxide is released into the atmosphere, from where it is again captured by plants and the cycle is repeated. Hence, option B) Plant ----> Animal ----> Atmosphere is the path possible in carbon cycle.