IIT JEE Practice Question and Answer
8Q: What kind of Room has No Doors or Windows 1992 05b5cc6abe4d2b4197774d00b
5b5cc6abe4d2b4197774d00b- Show AnswerHide Answer
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Answer :
Explanation :
Mushroom.
Q: Sixty men can stitch 150 shirts in 30 days working 8 hours a day. In how many days can 35 men stitch 200 shirts working 6 hours a day ? 1992 05b5cc6dce4d2b4197774e9c9
5b5cc6dce4d2b4197774e9c9- 187.5false
- 289false
- 391.5true
- 493.5false
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Answer : 3. "91.5"
Explanation :
Answer: C) 91.5 Explanation: We have M1 D1 H1 / W1 = M2 D2 H2 / W2 (Variation rule)(60 x 30 x 8)/ 150 = (35 x D2 x 6) / 200 D2 = (60 x 30 x 8 x 200) / (150 x 35 x 6) => D2 = 91.42 days =~ 91.5 days.
Q: Nitrogenous Food is 1992 05b5cc6b1e4d2b4197774d328
5b5cc6b1e4d2b4197774d328- 1Proteinstrue
- 2Carbohydratesfalse
- 3Saltsfalse
- 4Lipidsfalse
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Answer : 1. "Proteins"
Explanation :
Answer: A) Proteins Explanation: Here the Nitrogenous Food is Proteins. Nitrogenous Food :: The animal body is more than a machine. It requires fuel to enable it not only to work but also to live, even without working. A part of the food eaten must go to maintain the body Nitrogenous food compounds are sometimes classed together under the name of proteins. These may be divided into proteids, gelatinoids, and extractives.
Q: Find the odd one out of the following number series? 56, 64, 48, 90, 16, 144 1992 05b5cc658e4d2b4197774bddd
5b5cc658e4d2b4197774bddd- 148false
- 264false
- 390true
- 416false
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Answer : 3. "90"
Explanation :
Answer: C) 90 Explanation: The given number series follows a pattern that, 56 56 + 8 = 64 64 - 16 = 48 48 + 32 = 80 (Not equal to 90) 80 - 64 = 16 16 + 128 = 144 Hence, the odd number in the given number series is 90.
Q: How many birthdays does the average person have? 1991 05b5cc670e4d2b4197774c05f
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Answer :
Explanation :
Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.
Q: The letters of the word PROMISE are to be arranged so that three vowels should not come together. Find the number of ways of arrangements? 1991 05b5cc6ade4d2b4197774d0f9
5b5cc6ade4d2b4197774d0f9- 14320true
- 24694false
- 34957false
- 44871false
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Answer : 1. "4320"
Explanation :
Answer: A) 4320 Explanation: Given Word is PROMISE. Number of letters in the word PROMISE = 7 Number of ways 7 letters can be arranged = 7! ways Number of Vowels in word PROMISE = 3 (O, I, E) Number of ways the vowels can be arranged that 3 Vowels come together = 5! x 3! ways Now, the number of ways of arrangements so that three vowels should not come together = 7! - (5! x 3!) ways = 5040 - 720 = 4320.
Q: Two metallic plate of equal thickness and coefficient thermal conductivity K1 and K2 put together face to face. A common plate is constructed. What is equivalent K? 1991 05b5cc6bfe4d2b4197774d9e7
5b5cc6bfe4d2b4197774d9e7- 1K1k2/k1+k2false
- 22k1k2/k1+k2true
- 3K1+k2/k1k2false
- 4Nonefalse
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Answer : 2. "2k1k2/k1+k2"
Explanation :
Answer: B) 2k1k2/k1+k2 Explanation: We know that, The equivalent K = L1 + L2L1K1+L2K2 where L1 & L2 are plate1 & Plate2 thicknesses, K1 & K2 are coefficient thermal conductivity of plate1 & Plate2 respectively. But here L1 = L2 = L (say) Then K = L+L/(L/K1 + L/K2) = 2K1K2K1+K2
Q: Pluto dwells on the inner edge of the 1990 05b5cc64ae4d2b4197774bc30
5b5cc64ae4d2b4197774bc30- 1Main asteroid beltfalse
- 2Oort cloudfalse
- 3Kuiper belttrue
- 4None of the abovefalse
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Answer : 3. "Kuiper belt"
Explanation :
Answer: C) Kuiper belt Explanation: Pluto dwells on the inner edge of the The Kuiper belt which is a belt of asteroids that lies on the outer edge of the solar system. Pluto is a dwarf planet that is supposed to be no longer a planet and is still considered a planet because of its history in the solar system. It takes 248 years to make one orbit around the sun. As to where it is, depends on time.

