CAT Practice Question and Answer
8Q: Which digits will come in the place of '?' in the following series ? 372, 823, 644, 582, 46?, 8?7 1963 05b5cc731e4d2b4197774f800
5b5cc731e4d2b4197774f800- 14, 4false
- 26, 2true
- 33, 2false
- 42, 5false
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Answer : 2. "6, 2"
Explanation :
Answer: B) 6, 2 Explanation: Given series is 372, 823, 644, 582, 46?, 8?7 Here the series follow the rule that :372 = 3+7+2 = 12823 = 8+2+3 = 13644 = 6+4+4 = 14582 = 5+8+2 = 1546? = 4+6+? = 16 => ? = 68?7 = 8+?+7 = 17 => ? = 2 So the missing numbers are 6 and 2
Q: A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is ? 1963 05b5cc720e4d2b4197774f640
5b5cc720e4d2b4197774f640- 111false
- 27false
- 39true
- 413false
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Answer : 3. "9"
Explanation :
Answer: C) 9 Explanation: Here the number of cogs is inveresly proportional to number of revolutions => More cogs less revolution=> 6 : 14 :: x : 21=> (21x6)/14 = 9
Q: 3 is what percent of 5? 1963 05b5cc64ae4d2b4197774bc0c
5b5cc64ae4d2b4197774bc0c- 145%false
- 260%true
- 372%false
- 480%false
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Answer : 2. "60%"
Explanation :
Answer: B) 60% Explanation: Here it is asked that 3 is what percent of 5 Let 3 is K percent of 5. => K x 5/100 = 3 => K = 300/5 = 60 Hence, 3 is 60% of 5.
Q: What will come in place of the question mark (?) in the following questions ? 22% of ? + 166.64 = 340 1962 05b5cc6fee4d2b4197774f102
5b5cc6fee4d2b4197774f102- 1788true
- 2786false
- 3784false
- 4792false
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Answer : 1. "788"
Explanation :
Answer: A) 788 Explanation: (kx22)/100 = 340 - 166.64 = 173.36 k = (173.36 x 100)/22 k = 788
Q: Which of the following statements about monosaccharide structure is true? 1962 05b5cc65ee4d2b4197774be2c
5b5cc65ee4d2b4197774be2c- 1Aldoses and ketoses differ in the position of their hydroxyl groups.false
- 2Monosaccharides can be classified according to the spatial arrangement of their atoms.true
- 3All monosaccharides contain carbon, hydrogen, oxygen, and nitrogen atoms.false
- 4A six-carbon sugar is called a pentose.false
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Answer : 2. "Monosaccharides can be classified according to the spatial arrangement of their atoms."
Explanation :
Answer: B) Monosaccharides can be classified according to the spatial arrangement of their atoms. Explanation: Monosaccharides, also called simple sugars, are the most basic units of carbohydrates. They are fundamental units of carbohydrates and cannot be further hydrolyzed to simpler compounds. Hence, Monosaccharides can be classified according to the spatial arrangement of their atoms is true about Monosaccharides.
Q: On a school’s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ? 1961 05b5cc741e4d2b4197774f9a4
5b5cc741e4d2b4197774f9a4- 114false
- 216false
- 312false
- 415true
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Answer : 4. "15"
Explanation :
Answer: D) 15 Explanation: Let 'K' be the total number of sweets.Given total number of students = 112If sweets are distributed among 112 children,Let number of sweets each student gets = 'L' => K/112 = L ....(1)But on that day students absent = 32 => remaining = 112 - 32 = 80Then, each student gets '6' sweets extra. => K/80 = L + 6 ....(2)from (1) K = 112L substitute in (2), we get112L = 80L + 48032L = 480L = 15 Therefore, 15 sweets were each student originally supposed to get.
Q: Which of the following Rivers has no Bridges built over it? 1961 05b5cc6bde4d2b4197774d906
5b5cc6bde4d2b4197774d906- 1Nilefalse
- 2Congo riverfalse
- 3Amazon rivertrue
- 4Yellow riverfalse
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Answer : 3. "Amazon river"
Explanation :
Answer: C) Amazon river Explanation: There are No bridges over The Amazon River. The Amazon River, in South America, is the largest river by discharge volume of water in the world and the second longest in length after The Nile in Egypt.
Q: Derivative of sinx by first principle? 1960 05b5cc6abe4d2b4197774d011
5b5cc6abe4d2b4197774d011- 1-sinxfalse
- 2-cosxfalse
- 3cosxtrue
- 4sinxfalse
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Answer : 3. "cosx"
Explanation :
Answer: C) cosx Explanation: Thus, the derivative of sinx by first principle is cosx.