CAT Practice Question and Answer
8Q: If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ? 2193 05b5cc75ce4d2b4197774fc48
5b5cc75ce4d2b4197774fc48- 124%false
- 229%false
- 334%false
- 425%true
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Answer : 4. "25%"
Explanation :
Answer: D) 25% Explanation: Here, k = 7 and l = 28Therefore, first number = klx100 % of second number = 7/28 x 100% of second number = 25% of second number.
Q: An electronic device rearranges numbers step-by-step in a particular order according to set of rules. The device stops when the final result is obtained. Input: 84 15 35 04 18 96 62 08Step 1: 96 84 15 35 04 18 62 08Step 2: 96 84 62 15 35 04 18 08Step 3: 96 84 62 35 15 04 18 08Step 4: 96 84 62 35 18 15 04 08Step 5: 96 84 62 35 18 15 08 04And Step 5 is the last step for this input. Now, find out an appropriate step in the following question following the above rule. Question:Input: 16 09 24 28 15 04What will be the third step for this input ? 2193 05b5cc771e4d2b4197774fffd
5b5cc771e4d2b4197774fffd- 128 24 15 16 04 09false
- 228 24 16 15 09 04true
- 324 28 15 16 09 04false
- 428 24 16 15 04 09false
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Answer : 2. "28 24 16 15 09 04"
Explanation :
Answer: B) 28 24 16 15 09 04 Explanation: Carefully obsrving the given arrangement, we find the following pattern:We observe that the given numbers are arranged in descending order (from left to right), altering the position of only one number in each step, followed by the other numbers as it is. The process continues till the whole set of numbers is arranged in the descending order. Step1: 28 16 09 24 15 04Step2: 28 24 16 09 15 04Step3: 28 24 16 15 09 04 Hence, the answer is B
Q: In a family, each daughter has the same number of brothers as she has sisters and each son has twice as many sisters as he has brothers. How many sons are there in the family ? 2192 05b5cc723e4d2b4197774f6be
5b5cc723e4d2b4197774f6be- 11false
- 22false
- 33true
- 44false
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Answer : 3. "3"
Explanation :
Answer: C) 3 Explanation: Assume the family has X girls and Y boys, according to the question,we can have 2 equations:X-1=Y, 2(Y-2)=X.Solve the equations, we get X=4, Y=3.
Q: One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill tank in 36 min, then the slower pipe alone will be able to fill the tank in ? 2192 05b5cc6f1e4d2b4197774ef3f
5b5cc6f1e4d2b4197774ef3f- 185 minfalse
- 292 minfalse
- 3187 minfalse
- 4144 mintrue
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Answer : 4. "144 min"
Explanation :
Answer: D) 144 min Explanation: Let the slower pipe alone fill the tank in x min. Then, faster pipe will fill it in x/3 min. 1/x + 3/x = 1/36 4/x = 1/36 => x = 144 min.
Q: What is always coming but never arrives? 2192 05b5cc68be4d2b4197774c3b5
5b5cc68be4d2b4197774c3b5- Show AnswerHide Answer
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Answer :
Explanation :
It is Tomorrow. It always be tomorrow which represents coming but never arrives.
Q: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 cm x 6 m when 10% of its volume is occupied by mortar ? 2192 05b5cc6d8e4d2b4197774e76e
5b5cc6d8e4d2b4197774e76e- 1720true
- 2600false
- 3660false
- 46000false
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Answer : 1. "720"
Explanation :
Answer: A) 720 Explanation: Let the number of bricks be 'N' 10 x 4/100 x 6 x 90/100 = 25/100 x 15/100 x 8/100 x N 10 x 4 x 6 x 90 = 15 x 2 x N => N = 720.
Q: Which city is known as "Queen of Arabian Sea" ? 2192 05b5cc6cfe4d2b4197774e321
5b5cc6cfe4d2b4197774e321- 1Vizagfalse
- 2Kakinadafalse
- 3Mumbaifalse
- 4Kochitrue
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Answer : 4. "Kochi"
Explanation :
Answer: D) Kochi Explanation:
Q: Contra-entries are passed only when 2188 05b5cc645e4d2b4197774bbe0
5b5cc645e4d2b4197774bbe0- 1Simple cash book is preparedfalse
- 2Double column cash book is preparedtrue
- 3Three column cash book is preparedfalse
- 4None of the abovefalse
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Answer : 2. "Double column cash book is prepared"
Explanation :
Answer: B) Double column cash book is prepared Explanation: Contra-entry is the entry which effected the both sides in cash book. It is occured in three times, i.e., 1.Cash deposited in to bank, 2.Cash withdrawn from the bank for office use, and 3.Receivable cheque deposited in to the bank in another day.