IIT JEE Practice Question and Answer
8Q: In the following number series, one of the numbers is wrong. Find it out? 77, 79, 76, 81, 75, 85 1388 05b5cc6bee4d2b4197774d965
5b5cc6bee4d2b4197774d965- 179false
- 281false
- 375true
- 485false
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Answer : 3. "75"
Explanation :
Answer: C) 75 Explanation: Here in the given series, it follows a pattern that 77 + 2 = 79 79 - 3 = 76 76 + 5 = 81 81 - 7 = 74 74 + 11 = 85 Consecutive adding and subtracting of prime numbers. So the wrong number in the given series is 75.
Q: The United Nations Public Service Day is observed on 1387 05b5cc6d3e4d2b4197774e55e
5b5cc6d3e4d2b4197774e55e- 1June 24false
- 2June 23true
- 3June 26false
- 4June 25false
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Answer : 2. "June 23"
Explanation :
Answer: B) June 23 Explanation: The United Nations Public Service Day is observed every year on June 23 to recognize the work of public servants and to encourage young people to pursue careers in the public sector. The day is also observed to celebrate value and virtue of public service to the community and to raise awareness regarding the contribution of public service in the development of society and honouring the work of public servants.
Q: A train 900 m long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 min, then the length of the tunnel is ? 1387 05b5cc6dce4d2b4197774e99c
5b5cc6dce4d2b4197774e99c- 1400 mtrue
- 2300 mfalse
- 3500 mfalse
- 4600 mfalse
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Answer : 1. "400 m"
Explanation :
Answer: A) 400 m Explanation: Speed = 78 x 5/18 = 65/3 m/sec.Time = 1 min = 60 sec.Let the length of the train be x meters.Then, (900 + x)/60 = 65/3x = 400 m.
Q: Who has been appointed as the new Director General of Police (DGP) of Telangana State Government? 1387 05b5cc6bfe4d2b4197774d9e2
5b5cc6bfe4d2b4197774d9e2- 1M. Mahender Reddytrue
- 2Dharmendra Raofalse
- 3Anurag Sharmafalse
- 4V.V. Srinivas Raofalse
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Answer : 1. "M. Mahender Reddy"
Explanation :
Answer: A) M. Mahender Reddy Explanation: M. Mahender Reddy, Commissioner of Hyderabad Police, has been appointed as the new Director General of Police (DGP) of Telangana State. He took charge on 12 November 2017.Reddy succeeded the first DGP of Telangana State Anurag Sharma, who retired from the service on 11 November 2017. Meanwhile, Hyderabad Police Additional Commissioner V.V. Srinivasa Rao has been made in-charge of Hyderabad Commissioner of Police. Anurag Sharma has now appointed as the advisor to Home Department by the Telangana State Government.
Q: The process of bones increasing in width is known as 1386 05b5cc672e4d2b4197774c0c3
5b5cc672e4d2b4197774c0c3- 1appositional growthtrue
- 2closing of the epiphyseal platefalse
- 3concentric growthfalse
- 4long bones reaching adult length and widthfalse
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Answer : 1. "appositional growth"
Explanation :
Answer: A) appositional growth Explanation:
Q: World’s highest railway bridge will be constructed on which river ? 1386 05b5cc6e3e4d2b4197774ecbb
5b5cc6e3e4d2b4197774ecbb- 1Gangafalse
- 2Chenabtrue
- 3Yamunafalse
- 4Kaverifalse
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Answer : 2. "Chenab"
Explanation :
Answer: B) Chenab Explanation: Chenab River in Jammu & Kashmir in next 2 years. Its height is 359 mts i.e 35mts more than the height of Eiffel Tower.
Q: Plants are photosynthetic autotrophs. What does this mean? 1385 05b5cc662e4d2b4197774be95
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Answer :
Explanation :
Plants are photosynthetic autotrophs, which means that they are able to produce their own food through the process called photosynthesis. In photosynthesis, plants use light, water, and carbon dioxide to create glucose, which they convert to cellulose and use to make new cells. Hence, that is why, Plants are called photosynthetic autotrophs.
Q: Which international Airport Ltd has bagged the National Award for 'Excellence' in Energy Management ? 1385 05b5cc6c7e4d2b4197774decd
5b5cc6c7e4d2b4197774decd- 1New Delhifalse
- 2Lucknowfalse
- 3Hyderabadtrue
- 4Mumbaifalse
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Answer : 3. "Hyderabad"
Explanation :
Answer: C) Hyderabad Explanation:

