Quantitative Aptitude Practice Question and Answer
8Q: 12 days payment to the servant in a cloth showroom in festival season is Rs. 400 plus one shirt. The servant leaves after 9 days and recieves Rs. 280 and a shirt. What is the price of the shirt ? 1958 05b5cc6d0e4d2b4197774e380
5b5cc6d0e4d2b4197774e380- 1Rs. 80true
- 2Rs. 120false
- 3Rs. 70false
- 4Rs. 100false
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Answer : 1. "Rs. 80"
Explanation :
Answer: A) Rs. 80 Explanation: The servant worked for 9 days instead of 12 days, he should receive 9/12 of his total payment Let the price of 1 shirt be Rs. S i.e., 3/4 (400 + S). However, the question states that the servant receive Rs. 280 + S where S is the price of the shirt. By equating the two equations we get 3/4 (400 + S) = 280 + S. Therefore, Price of the shirt S = Rs. 80.
Q: A Product is supported each week by the same three Product supporters. Last month the first supporter took 440 calls, the second took 360 calls, and the third took 300 calls. This month the job will consists of 1500 calls. If the three supporters each increase their work proportionately, how many more calls will the second supporter take this month than last month ? 1958 05b5cc745e4d2b4197774fa40
5b5cc745e4d2b4197774fa40- 1131 callstrue
- 2160 callsfalse
- 3491 callsfalse
- 4600 callsfalse
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Answer : 1. "131 calls"
Explanation :
Answer: A) 131 calls Explanation: 1st supporter recieve 440 calls 2nd supporter recieve 360 calls 3rd supporter recieve 300 calls So total calls = 1100 calls ; Calls this month= 1500 So remaining calls to be distributed is 400 So Now Ratio 1st:2nd:3rd ==> 440:360:300=> 22:18:15 Now No. of More Calls 2nd supporter will get => [18/(22+18+15)] x 400=> (18/55) x 400 => 131 CallsSo 131 more Calls than last month.
Q: Two pipes A and B can separately fill a cistern in 60 min and 75 min respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened, then the cistern is full in 50 min. In how much time, the third pipe alone can empty the cistern ? 1957 05b5cc6e7e4d2b4197774edb5
5b5cc6e7e4d2b4197774edb5- 185 minfalse
- 295 minfalse
- 3105 minfalse
- 4100 mintrue
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Answer : 4. "100 min"
Explanation :
Answer: D) 100 min Explanation: Work done by the third pipe in 1 min = 1/50 - (1/60 + 1/75) = - 1/100.[-ve sign means emptying] The third pipe alone can empty the cistern in 100 min.
Q: 1/8 as a decimal? 1957 05b5cc6a6e4d2b4197774cd6f
5b5cc6a6e4d2b4197774cd6f- 10.125true
- 20.225false
- 30.325false
- 40.425false
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Answer : 1. "0.125"
Explanation :
Answer: A) 0.125 Explanation: 1/8 to convert into decimal, Find an equivalent fraction with a denominator of a power of 10. In this case, we will use 1000. 18 x 125125 = 1251000 This can now be written as a decimal with 3 decimal places (because we have thousandths. i.e, 0.125 Hence, 18 as a decimal = 0.125
Q: A man walks at a speed of 2 km/hr and runs at a speed of 6 km/hr. How much time will the man require to cover a distance of 20 1/2 km, if he completes half of the distance, i.e., (10 1/4) km on foot and the other half by running ? 1955 05b5cc6dfe4d2b4197774eaf8
5b5cc6dfe4d2b4197774eaf8- 112.4 hrsfalse
- 211.9 hrstrue
- 310.7 hrsfalse
- 49.9 hrsfalse
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Answer : 2. "11.9 hrs"
Explanation :
Answer: B) 11.9 hrs Explanation: We know that Time = Distance/speedRequired time = (10 1/4)/2 + (10 1/4)/6 = 41/8 + 41/6= 287/24 = 11.9 hours.
Q: 18 as a decimal? 1955 05b5cc6b0e4d2b4197774d2e5
5b5cc6b0e4d2b4197774d2e5- 10.375false
- 20.247false
- 30.214false
- 40.125true
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Answer : 4. "0.125"
Explanation :
Answer: D) 0.125 Explanation: Here 18 in decimal means 8th part in 1. We know that 110 = 0.1 Then, 18 = ? => ? = 18 x 0.1110= 0.1 x 108= 0.5418= 0.125
Q: If 25% of a number is subtracted from a second number, the second number reduces to its four-sixth. What is the ratio of the first number to the second number ? 1953 05b5cc6dee4d2b4197774ea46
5b5cc6dee4d2b4197774ea46- 14:3true
- 22:3false
- 33:2false
- 45:3false
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Answer : 1. "4:3"
Explanation :
Answer: A) 4:3 Explanation: Let the numbers be p & q q-p/4 = 4q/6 => q-4q/6 = p/4 => 2q/6 = p/4 => p/q = 4/3
Q: The mean of 100 observations is 40. It is found that an observation 84 was misread as 48. Then the correct mean is ? 1951 05b5cc6c0e4d2b4197774dab2
5b5cc6c0e4d2b4197774dab2- 140.36true
- 241.24false
- 341.92false
- 442.05false
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Answer : 1. "40.36"
Explanation :
Answer: A) 40.36 Explanation: Given, mean of 100 observations is 40 => Total of 100 observations = 40 x 100 = 4000 84 is misread as 48 => Difference = 84 - 48 = 36 => Now, new total of 100 observations = 4000 + 36 = 4036 Correct Mean = 4036/100 = 40.36