IIT JEE Practice Question and Answer
8Q: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1864 05b5cc6c8e4d2b4197774df41
5b5cc6c8e4d2b4197774df41- 1143false
- 263true
- 3323false
- 435false
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Answer : 2. "63"
Explanation :
Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e, 2 × 3 = 6 3 × 5 = 15 5 × 7 = 35 7 × 11 = 77 11 × 13 = 143 13 × 17 = 221 17 × 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.
Q: Crack the Logical #MathPuzzle? 1864 05b5cc6bbe4d2b4197774d839
5b5cc6bbe4d2b4197774d839- Show AnswerHide Answer
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Answer :
Explanation :
From given data, Rs. 1 = 40 strawberries => Rs. 2 = 80 strawberries Rs. 5 = 1 apple => Rs. 95 = 19 apple. Rs. 3 = 1 mango => Rs. 3 = 1, mango Now, Total So 100 Rs = 100 Fruits.
Q: The most healthy edible oil for heart is 1864 05b5cc6b9e4d2b4197774d6da
5b5cc6b9e4d2b4197774d6da- 1Almond Oilfalse
- 2Sesame Oilfalse
- 3Mustard Oilfalse
- 4Olive Oiltrue
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Answer : 4. "Olive Oil"
Explanation :
Answer: D) Olive Oil Explanation:
Q: An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with 'x' m/s and coming back at '2x' m/s. Take total time of bird travelling as 187.5 s. Find x and 2x in km/hr ? 1864 05b5cc73de4d2b4197774f911
5b5cc73de4d2b4197774f911- 121.4 and 42.8false
- 225.2 and 50.4false
- 331.4208 and 62.8416true
- 433.12 and 66.24false
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Answer : 3. "31.4208 and 62.8416"
Explanation :
Answer: C) 31.4208 and 62.8416 Explanation: Birds speeds in mtrs/sec is 'x' and '2x' .While flying from Engine to end, relative speed = (x+10) m/secfrom end to engine, flying speed = (2x - 10) mtr/secso 1000/(x+10) + 1000/(2x-10) = 187.5 secssolving it, we getso x = 8.728 m/sec and 2x= 17.456 m/sec x = 31.4208 km/hr and 2x = 62.8416 km/hr.
Q: On BBC World News channel last night they showed an informative program about new innovations in medical imaging, which you would have found interesting. 1863 05b5cc6a3e4d2b4197774cc1a
5b5cc6a3e4d2b4197774cc1a- 1there was an informative program about innovations in medical imaging, a program you would have found interesting.true
- 2they showed an informative program about innovations in medical imaging, which you would have found interesting.false
- 3there was an informative program about new innovations in medical imaging, that you would have found interesting.false
- 4they showed an informative program about new innovations in medical imaging, which you would have found interesting.false
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Answer : 1. "there was an informative program about innovations in medical imaging, a program you would have found interesting."
Explanation :
Answer: A) there was an informative program about innovations in medical imaging, a program you would have found interesting. Explanation: They is incorrect when talking of the television channel. New is redundant. And which must have a clear antecedent. Hence, Only Option A satisfies and clears all the flaws in the given sentence.
Q: Name the state assembly, which has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. 1862 05b5cc6a3e4d2b4197774cc25
5b5cc6a3e4d2b4197774cc25- 1Rajasthan Assemblytrue
- 2Uttar Pradesh Assemblyfalse
- 3Maharashtra Assemblyfalse
- 4Bihar Assemblyfalse
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Answer : 1. "Rajasthan Assembly"
Explanation :
Answer: A) Rajasthan Assembly Explanation: Rajasthan assembly has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. State Home Minister Gulab Chand Kataria introduced 'The Criminal Laws (Rajasthan Amendment) Bill, 2018' in the assembly, which was passed in the House by a voice vote following a debate.
Q: Total Output is a synonym for 1862 05b5cc6ace4d2b4197774d0d5
5b5cc6ace4d2b4197774d0d5- 1aggregate demandfalse
- 2gross domestic productfalse
- 3aggregate supplytrue
- 4equilibriumfalse
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Answer : 3. "aggregate supply"
Explanation :
Answer: C) aggregate supply Explanation: Total Output is a synonym for Aggregate supply or Initial production.
Q: How many Enzymes are there in the Human Body? 1862 05b5cc6b3e4d2b4197774d3dc
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Answer :
Explanation :
There are nearly about 75000 enzymes of 3 classes are there in the human body. They are : 1. Metabolic Enzymes - Enzymes that help to run our Bodies 2. Digestive Enzymes - Enzymes that help in digesting Food 3. Food Enzymes - Enzymes from raw foods that start our Food digestion.

