IIT JEE Practice Question and Answer
8Q: Raghu earns 25% on an investment but loses 10% on another investment. If the ratio of the two investment is 3:5. What is the gain or loss on two investments taken together ? 1806 05b5cc754e4d2b4197774fb72
5b5cc754e4d2b4197774fb72- 11.251 %false
- 23.125 %true
- 37.21 %false
- 49.451 %false
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Answer : 2. "3.125 %"
Explanation :
Answer: B) 3.125 % Explanation: Taking the 2 investments to be 3x and 5x respectivelyTotal income of Raghu = (3x) x 1.25 + (5x) x 0.9 = 8.25Therefore, Gain% = 0.25/8 x 100 = 3.125 %.
Q: Which animal adaptation happened before the others? 1806 05b5cc62ce4d2b4197774b91d
5b5cc62ce4d2b4197774b91d- 1Reproduction on landfalse
- 2Development of a colelomfalse
- 3Tissue developmenttrue
- 4Deuterostome developmentfalse
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Answer : 3. "Tissue development"
Explanation :
Answer: C) Tissue development Explanation:
Q: The Indian Judge who has been re-elected to International Court of Justice(ICJ) 2017? 1806 05b5cc6bee4d2b4197774d96f
5b5cc6bee4d2b4197774d96f- 1Dalveer Bhandaritrue
- 2S.N. Raofalse
- 3Arjun Singhfalse
- 4R. S. Pathakfalse
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Answer : 1. "Dalveer Bhandari"
Explanation :
Answer: A) Dalveer Bhandari Explanation: India's nominee to International Court of Justice (ICJ) Dalveer Bhandari (70) was re-elected to fifth and the last seat of World court. Bhandari received 183-193 votes in United Nations General Assembly and secured all 15 votes in UN Security Council (UNSC). He was elected after Britain withdrew its candidate from the election. This is the first time since the ICJ was established in 1945 that there will be no British judge in ICJ. Bhandari is fourth Indian judge to be elected to ICJ after B.N. Rau, Nagendra Singh and RS Pathak.
Q: In which layer is the temperature the lowest? 1805 05b5cc622e4d2b4197774b7ee
5b5cc622e4d2b4197774b7ee- 1Tropospherefalse
- 2Ionospherefalse
- 3Mesospheretrue
- 4Stratospherefalse
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Answer : 3. "Mesosphere"
Explanation :
Answer: C) Mesosphere Explanation: The mesosphere lies above the stratosphere and extends to an altitude of about 85 km. This is layer is often referred to as the cold layer, as the lowest readings in the atmosphere are found here. Temperature decreases with height, reaching a minimum average value of -90 ºC at the top of the layer.
Q: The profit earned by selling an article for Rs. 832 is equal to the loss incurred when the same article is sold for Rs. 448. What should be the sale price for making 50% profit ? 1805 05b5cc6dee4d2b4197774ea80
5b5cc6dee4d2b4197774ea80- 1Rs. 660false
- 2Rs. 560false
- 3Rs. 1060false
- 4Rs. 960true
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Answer : 4. "Rs. 960"
Explanation :
Answer: D) Rs. 960 Explanation: Let C.P. = Rs. C. Then, 832 - C = C - 4482C = 1280 => C = 640Required S.P. = 150% of Rs. 640 = 150/100 x 640 = Rs. 960.
Q: If the average height of boys in a hall is 180 cm and that of girls is 150 cm. If the average height of the gathering is 165 cm, then find the number of girls present in the hall if the number of boys present in the hall are 78 ? 1805 05b5cc6c7e4d2b4197774dea0
5b5cc6c7e4d2b4197774dea0- 156false
- 264false
- 387false
- 478true
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Answer : 4. "78"
Explanation :
Answer: D) 78 Explanation: Using Trial and error method, we get the number of girls in the hall = 78
Q: Which of the following can be a symptom of AIDS? 1804 05b5cc688e4d2b4197774c309
5b5cc688e4d2b4197774c309- 1Hair lossfalse
- 2Severe weight gainfalse
- 3Tirednesstrue
- 4All the abovefalse
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Answer : 3. "Tiredness"
Explanation :
Answer: C) Tiredness Explanation: From the aboe given options, only extreme and unexplained tiredness is the symptom of AIDS. The other symptoms of AIDS include: recurring fever, thrush — a thick, whitish coating of the tongue or mouth that's caused by a yeast infection and sometimes accompanied by a sore throat, diarrhea that lasts more than a week, headaches, lightheadedness, and/or dizziness.
Q: What is a word made up of 4 letters, yet is also made up of 3. Everything is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5. 1804 05b5cc6b3e4d2b4197774d3f2
5b5cc6b3e4d2b4197774d3f2- Show AnswerHide Answer
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Answer :
Explanation :
The Riddle itself has the Answers. What is a 4 letter word Yet is written in 3 letters Everything is written with 9 letters Then with 4 letters Rarely has 6 letters Never is written in 5 letters.

