CAT Practice Question and Answer
8Q: The sum of three consecutive odd numbers is 93. What is the middle number? 2152 05b5cc6b7e4d2b4197774d5e7
5b5cc6b7e4d2b4197774d5e7- 131true
- 233false
- 329false
- 427false
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Answer : 1. "31"
Explanation :
Answer: A) 31 Explanation: Let the three consecutive odd numbers be x, x+2, x+4 Then, x + x + 2 + x + 4 = 93 => 3x + 6 = 93 => 3x = 87 => x = 29 => 29, 31, 33 are three consecutive odd numbers. Therefore, the middle number is 31.
Q: A decision committee of 5 members is to be formed out of 4 Actors, 3 Directors and 2 Producers. In how many ways a committee of 2 Actors, 2 Directors and 1 Producer can be formed ? 2151 05b5cc6b6e4d2b4197774d572
5b5cc6b6e4d2b4197774d572- 118false
- 224false
- 336true
- 432false
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Answer : 3. "36"
Explanation :
Answer: C) 36 Explanation: Required Number of ways = 4C2 × 3C2 × 2C1 = 36 = 36
Q: Which of the following is not a pure substance? 2150 05b5cc6a8e4d2b4197774ce57
5b5cc6a8e4d2b4197774ce57- 1Oxygenfalse
- 2Carbon dioxidefalse
- 3Waterfalse
- 4Milktrue
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Answer : 4. "Milk"
Explanation :
Answer: D) Milk Explanation: Milk is not a pure substance since it has so many constituents that can be separated physically. Compounds are pure substances formed from elements unlike mixtures.
Q: If (2a + 3b)/(5a - 3b) = 23/5 , then the value of ba is ? 2150 05b5cc761e4d2b4197774fd39
5b5cc761e4d2b4197774fd39- 15false
- 24false
- 320true
- 428false
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Answer : 3. "20"
Explanation :
Answer: C) 20 Explanation: Given (2a + 3b)/(5a - 3b) = 23/5 => 10a + 15b = 115a - 69b=> 105a = 84b => 5a = 4b a/b = 4/5 => a=4 & b=5=> bxa = 5x4 = 20.
Q: How much water can be used by a camel in drinking in a single time ? 2147 05b5cc736e4d2b4197774f860
5b5cc736e4d2b4197774f860- 1Up to 60 ltr.false
- 2Up to 100 ltr.true
- 3Up to 80 ltr.false
- 4Up to 120 ltr.false
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Answer : 2. "Up to 100 ltr."
Explanation :
Answer: B) Up to 100 ltr. Explanation:
Q: What sugar is found in RNA? 2144 05b5cc6a7e4d2b4197774ce31
5b5cc6a7e4d2b4197774ce31- 1Deoxyribosefalse
- 2Ribosetrue
- 3Pentosefalse
- 4Sucrosefalse
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Answer : 2. "Ribose"
Explanation :
Answer: B) Ribose Explanation: RNA - ribonucleic acid is a type of nucleic acid. The sugar contained in it is called Ribose.
Q: The Peacock Throne was a famous jeweled throne that was the seat of the ________ emperors of India. 2144 05b5cc6b7e4d2b4197774d61a
5b5cc6b7e4d2b4197774d61a- 1Mughaltrue
- 2Mauryafalse
- 3Guptafalse
- 4Marathafalse
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Answer : 1. "Mughal"
Explanation :
Answer: A) Mughal Explanation: The Peacock Throne was a famous jeweled throne that was the seat of the Mughal emperors of India. It was commissioned in the early 17th century by emperor Shah Jahan and was located in the Red Fort of Delhi.
Q: Is a square a rhombus? 2143 05b5cc67ee4d2b4197774c250
5b5cc67ee4d2b4197774c250- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: Yes, a square is a rhombus. But a rhombus is not a square unless the interior angles are at right angles. We know that, a square is a quadrilateral with all sides equal and all the interior angles are 90 deg i.e, at right angles. Whereas a rhombus is also a quadrilateral with all sides equal but the interior angles are not at right angles. Hence, if the interior angles of a rhombus are all at right angles (90 deg), then it is square.