IIT JEE Practice Question and Answer
8Q: Two passenger trains start at the same hour in the day from two different stations and move towards each other at the rate of 16 kmph and 21 kmph respectively. When they meet, it is found that one train has traveled 60 km more than the other one. The distance between the two stations is ? 5280 05b5cc6ebe4d2b4197774eea0
5b5cc6ebe4d2b4197774eea0- 1387 kmsfalse
- 2242 kmsfalse
- 3145 kmsfalse
- 4444 kmstrue
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Answer : 4. "444 kms"
Explanation :
Answer: D) 444 kms Explanation: 1h ----- 5 kms? ------ 60 kms Time = 12 hrs Relative Speed = 16 + 21 = 37 kmph T = 12 hrs D = S x T = 37 x 12 = 444 kms.
Q: Iodine test is used to detect 5276 05b5cc699e4d2b4197774c741
5b5cc699e4d2b4197774c741- 1Carbohydratetrue
- 2Fatfalse
- 3Proteinfalse
- 4Cholesterolfalse
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Answer : 1. "Carbohydrate"
Explanation :
Answer: A) Carbohydrate Explanation: The iodine test is used to test for the presence of starch i.e, Carbohydrate.
Q: 19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs. 5272 05b5cc754e4d2b4197774fb6d
5b5cc754e4d2b4197774fb6d- 123 hoursfalse
- 247 hrs 15 minfalse
- 352 hrs 15 mintrue
- 422 hrs 15 minfalse
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Answer : 3. "52 hrs 15 min"
Explanation :
Answer: C) 52 hrs 15 min Explanation: Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.And a 15 min intervalTotal time they take to do 52 programs is 52 hours 15 minutes.
Q: Rajeev start a business with Rs. 10000, Deepu joins him after 2 month with 20% more investment than Rajeev, after 2 month Shakti joins him with 40% less than Deepu. If the profit earned by them at the end of the year is equal to the twice of the difference between investment of Rajeev and ten times the investment of Shakti. Find the profit of Rajeev ? 5263 05b5cc6c6e4d2b4197774de2c
5b5cc6c6e4d2b4197774de2c- 150000false
- 248000false
- 338000true
- 440000false
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Answer : 3. "38000"
Explanation :
Answer: C) 38000 Explanation: Here from the given information, The ratio of investments of Rajeev, Deepu & Shakti is R : D : S = (10000 × 12) : (12000 × 10) : (7200 × 8) = 25 : 25 : 12 Now the Profit = 2 × (72000-10000) = 124000 Share of Rajeev = 124000 x 25/62 = 48000 Profit of Rajeev = 48000 - 10000 = 38000
Q: Which region specializes in diamonds? 5230 05b5cc642e4d2b4197774bb4d
5b5cc642e4d2b4197774bb4d- 1Sub-Saharan Africatrue
- 2Central americafalse
- 3Middle east Europefalse
- 4South Americafalse
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Answer : 1. "Sub-Saharan Africa"
Explanation :
Answer: A) Sub-Saharan Africa Explanation:
Q: Which layer 4 protocol is used for a Telnet connection? 5229 05b5cc6a2e4d2b4197774cb47
5b5cc6a2e4d2b4197774cb47- 1UDPfalse
- 2IPfalse
- 3TCPtrue
- 4TCP/IPfalse
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Answer : 3. "TCP"
Explanation :
Answer: C) TCP Explanation: Telnet uses TCP at layer 4. It uses IP at layer 3. We know that Telnet uses TCP/IP protocol, but in the question, it is asked specifically at layer 4 what is used in Telnet. So it is TCP at layer4 and IP at layer 3.
Q: Marathon is to race as Hibernation is to 5206 05b5cc6b5e4d2b4197774d510
5b5cc6b5e4d2b4197774d510- 1Eatfalse
- 2Sleeptrue
- 3Winterfalse
- 4Dreamfalse
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Answer : 2. "Sleep"
Explanation :
Answer: B) Sleep Explanation: Marathon is to Race as Hibernation is to Sleep. Marathon is a long race in the similar way Hibernation refers to a long sleep.
Q: Rotate : Energy :: Stop : ? 5203 05b5cc6a7e4d2b4197774ce40
5b5cc6a7e4d2b4197774ce40- 1Spinfalse
- 2Breakfalse
- 3Inertiatrue
- 4Nonefalse
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Answer : 3. "Inertia"
Explanation :
Answer: C) Inertia Explanation: To rotate is to energy to stop is to inertia. From the definition itself we know that inertia is a property by virtue of which a body continues to be in the state of rest or in state of motion. So over here whenever energy is supplied then the body starts to move that is a displacement is there and it is rotating where as whenever the body is stopped an inertia of rest is created. So, Rotate : Energy :: Stop : Inertia.

