IIT JEE Practice Question and Answer
8Q: A man reads 3/7 of a book on a day and 2/5 of the remaining, on the second day. If the number of pages still unread are 36, how many pages did the book contain ? 1468 05b5cc6c3e4d2b4197774dc4f
5b5cc6c3e4d2b4197774dc4f- 1105true
- 2101false
- 398false
- 4109false
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Answer : 1. "105"
Explanation :
Answer: A) 105 Explanation: Let number of pages in a book = p According to questions p - [3p/7 + (2/5 x 4p/7)] = 36 = p - 23p/35 = 36 => 12p = 36 × 35 p = 105
Q: Plant cell walls consist mainly of 1468 05b5cc632e4d2b4197774b9b3
5b5cc632e4d2b4197774b9b3- 1Chitinfalse
- 2peptidoglycanfalse
- 3cellulosetrue
- 4chlorophyllfalse
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Answer : 3. "cellulose"
Explanation :
Answer: C) cellulose Explanation: Plant cell walls are mostly made up of the molecule cellulose. Cellulose is a polysaccharide, a complex sugar made of long chains of glucose. The cell wall must be made of thick and strong material as it provides the structural shape of the plant and protection from insects and microorganisms.
Q: Find the total numbers greater than 4000 that can be formed with digits 2, 3, 4, 5, 6 no digit being repeated in any number ? 1467 05b5cc6cde4d2b4197774e1db
5b5cc6cde4d2b4197774e1db- 1120false
- 2256false
- 3192true
- 4244false
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Answer : 3. "192"
Explanation :
Answer: C) 192 Explanation: We are having with digits 2, 3, 4, 5 & 6 and numbers greater than 4000 are to be formed, no digit is repeated. The number can be 4 digited but greater than 4000 or 5 digited. Number of 4 digited numbers greater than 4000 are4 or 5 or 6 can occupy thousand place => 3 x P34 = 3 x 24 = 72. 5 digited numbers = P55 = 5! = 120 So the total numbers greater than 4000 = 72 + 120 = 192
Q: In how many different ways can the letters of the word 'HAPPYHOLI' be arranged? 1467 05b5cc6a7e4d2b4197774ce0e
5b5cc6a7e4d2b4197774ce0e- 189,972false
- 290,720true
- 372,000false
- 481,000false
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Answer : 2. "90,720"
Explanation :
Answer: B) 90,720 Explanation: The given word HAPPYHOLI has 9 letters These 9 letters can e arranged in 9! ways. But here in the given word letters H & P are repeated twice each Therefore, Number of ways these 9 letters can be arranged is 9!2! x 2! = 9 x 8 x 7 x 6 x 5 x 4 x 32 = 90,720 ways.
Q: Which of the following is not a monosaccharide? 1466 05b5cc639e4d2b4197774ba5d
5b5cc639e4d2b4197774ba5d- 1Fructosefalse
- 2Glucosefalse
- 3Galactosefalse
- 4Sucrosetrue
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Answer : 4. "Sucrose"
Explanation :
Answer: D) Sucrose Explanation: Sucrose is not a monosaccharide. Monosaccharides are simple carbohydrates molecules that cannot be broken down into smaller molecules of other carbohydrates. Glucose, galactose and fructose are examples of Monosaccharides.
Q: How many periods in National Hockey League? 1466 05b5cc6b5e4d2b4197774d553
5b5cc6b5e4d2b4197774d553- 12false
- 23true
- 34false
- 45false
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Answer : 2. "3"
Explanation :
Answer: B) 3 Explanation: National Hockey League game is divide into 3 Periods each of 20 minutes. During the regular season, if the game ends in a tie, a 5 minute, sudden death overtime is played. In the playoffs, the overtime is 20 minutes long.
Q: The yield to maturity on a discount bond is 1466 05b5cc65ee4d2b4197774be25
5b5cc65ee4d2b4197774be25- 1equal to both the coupon rate / current yeildtrue
- 2less than the current yeild but greater than the coupon ratefalse
- 3greater than both the coupon rate / current yeildfalse
- 4equal to the current yeild but greater than the coupon ratefalse
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Answer : 1. "equal to both the coupon rate / current yeild"
Explanation :
Answer: A) equal to both the coupon rate / current yeild Explanation: Yield to maturity is a concept for fixed rate bonds and is the internal rate of return i.e. the rate at which future flows are discounted on a compound basis to give the present value of the bond including accrued interest.
Q: "World Television Day" is observed every year on ___. 1465 05b5cc6c7e4d2b4197774de82
5b5cc6c7e4d2b4197774de82- 1Nov 21true
- 2Oct 22false
- 3Sep 23false
- 4Aug 24false
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Answer : 1. "Nov 21"
Explanation :
Answer: A) Nov 21 Explanation:

