IIT JEE Practice Question and Answer
8Q: A man was murdered in his office. The suspects are Ericson, Maggi, Joel, Benny, Sona, Patick. A calendar found near the man has blood written 6, 4, 9, 10, 11. Who is the killer? 14551 05b5cc6b7e4d2b4197774d629
5b5cc6b7e4d2b4197774d629- 1Maggifalse
- 2Ericsonfalse
- 3Sonafalse
- 4Joeltrue
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Answer : 4. "Joel"
Explanation :
Answer: D) Joel Explanation: If we consider the given numbers 6, 4, 9, 10, 11 to be the month number then we can easily find the killer. 6 – June – J 4 – April – A 9 – September – S 10 – October – O 11 – November – N Hence the answer is JOEL.
Q: In a town of 500 people, 285 read Hindu and 212 read Indian Express and 127 read Times of India, 20 read Hindu and Times of India and 29 read Hindu and Indian Express and 35 read Times of India and Indian express . 50 read no news paper . Then how many read only one paper ? 14529 05b5cc74fe4d2b4197774fb26
5b5cc74fe4d2b4197774fb26- 1123false
- 2231false
- 3312false
- 4321true
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Answer : 4. "321"
Explanation :
Answer: D) 321 Explanation: No. of people who read Hindu = 285No. of people who read TOI = 127No. of people who read IE = 212Now, No. of people who read Hindu and TOI both is = 20No. of people who read TOI and IE both is = 35No. of people who read Hindu and IE both is = 29Let No. of people who read Hindu , TOI and IE all is = x ;So, only Hindu is = 285-20-29-x = 236-x ;Only TOI is = 127-20-35-x = 72-x ;Only IE is = 212-35-29-x = 148-x ;Now, 236-x + 72-x + 148-x + 20 + 29 + 35 + x + 50 = 500 590 -2x = 500 So, x = 45 this is the value who read all the 3 dailies.So, No. of people who read only one paper is = 236-45 + 72-45 + 148-45 = 191 + 27 + 103 = 321.
Q: Which among the following is NOT a function of RBI? 13861 05b5cc6a8e4d2b4197774ce86
5b5cc6a8e4d2b4197774ce86- 1Serve as debt manager to other bankstrue
- 2To work as monetary authority and implement its Monetary Policyfalse
- 3Serve as banker to central and state governmentsfalse
- 4To serve as issuer of bank notesfalse
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Answer : 1. "Serve as debt manager to other banks"
Explanation :
Answer: A) Serve as debt manager to other banks Explanation: Serve as debt manager to other banks is not a function of RBI Bank.
Q: From a container of wine, a thief has stolen 15 litres of wine and replaced it with same quantity of water. He again repeated the same process. Thus, in three attempts the ratio of wine and water became 343 : 169. The initial amount of wine in the container was: 13732 15b5cc7d7e4d2b41977751510
5b5cc7d7e4d2b41977751510- 175 litresfalse
- 2100 litresfalse
- 3150 litresfalse
- 4120 litrestrue
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Answer : 4. "120 litres"
Explanation :
Answer: D) 120 litres Explanation: wine(left)wine(added) = 343169 It means wine(left)wine(initial amount) = 343512 (since 343 + 169 = 512) Thus, 343x = 512x1 - 15k3 343512 = 783 = 1 - 15k3 1-15k=78=1-18 Thus the initial amount of wine was 120 liters.
Q: 7 is to 34 as 5 is to 13344 05b5cc6b8e4d2b4197774d675
5b5cc6b8e4d2b4197774d675- 133false
- 224false
- 354false
- 441true
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Answer : 4. "41"
Explanation :
Answer: D) 41 Explanation: We can get this by any of two explanations. Answer 1: 41 7 = 3 + 4 = 34 Similarly, 5 = 4 + 1 = 41 Answer 2 : 41 7 - 3 = 4 => 34 Similarly, 5 - 4 = 1 => 41
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Answer :
Explanation :
Answer 1: c) Uncle R is Uncle to D. Answer 2: a) JRT JRT are one each from the same generations.
Q: Yard is to Fence as Cell is to 12875 05b5cc6b2e4d2b4197774d369
5b5cc6b2e4d2b4197774d369- 1Mitochondriafalse
- 2Cytoplasmfalse
- 3Membranetrue
- 4Nucleusfalse
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Answer : 3. "Membrane"
Explanation :
Answer: C) Membrane Explanation: Fence protects the Yard & Membrane protects the Cell. Fence surrounds the Yard and allows the certain objects in & out of it whereas a Membrane surrounds the Cell & only allows specific nutrients inside of it. Hence, Yard is to Fence as Cell is to Membrane.
Q: Five farmers have 7,9,11,13 & 14 apple trees respectively in their orchards. Last year each of them discovered that every tree in their own orchard yields exactly the same number of apples. Further, if the 3rd farmer gives one apple to the 1st and the 5th gives 3 to each of the 2nd & d 4th, they would all exactly have the same number of apples, what were the yields per tree in the orchards of the 3rd & 4th farmers ? 12796 05b5cc70ee4d2b4197774f38a
5b5cc70ee4d2b4197774f38a- 117 & 9false
- 29 & 11false
- 39 & 9false
- 411 & 9true
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Answer : 4. "11 & 9"
Explanation :
Answer: D) 11 & 9 Explanation: Let the number of apples in each tree of the 5 farmers be a, b, c, d,e respectively. Therefore total no of apples are 7a, 9b, 11c, 13d and 14e respectively. Given, 7a+1 = 9b+3 = 11c-1 = 13d+3 = 14e-6 = x 9b+3 = 13d+3===> 9b = 13dso take b = 13 and d = 9 9b+3 = 9*13+3 = 120 ie, x=120 substituting7a+1 = 1207a = 119a = 17 11c-1 = 12011c = 121c=11 14e-6 = 12014e = 126e = 9 Yields per tree in the orchards of d 3rd & 4th farmers= 11,9