Quantitative Aptitude Practice Question and Answer
8Q: An express traveled at an average speed of 100 km/hr, stopping for 4 min after every 75 km. How long did it take to reach its destination 600 km from the starting point ? 1720 05b5cc6e1e4d2b4197774eba7
5b5cc6e1e4d2b4197774eba7- 16 hrs 24 minfalse
- 26 hrsfalse
- 37 hrs 21 minfalse
- 46 hrs 28 mintrue
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Answer : 4. "6 hrs 28 min"
Explanation :
Answer: D) 6 hrs 28 min Explanation: Time taken to cover 600 km = 600/100 = 6 hrs. Number of stoppages = 600/75 - 1 = 7 Total time of stoppages = 4 x 7 = 28 min Hence, total time taken = 6 hrs 28 min.
Q: Every year before the festive season, a brand store increases the price of the product by 42% and then introduce two successive discount of 10% and 11% respectively. What is percentage loss and percentage gain ? 1720 05b5cc745e4d2b4197774f9f9
5b5cc745e4d2b4197774f9f9- 13.25% lossfalse
- 213.742% lossfalse
- 33.25% gainfalse
- 413.742% gaintrue
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Answer : 4. "13.742% gain"
Explanation :
Answer: D) 13.742% gain Explanation: Let CP = 100,42 % increase => SP = 14210 % discount in SP => ((142 x 10)/100) = 14.2So 1st SP = (142 - 14.2) = 127.8, again 12 % discount in 1st SP ((127.8 x 11)/100) = 14.0582nd SP = (127.8 - 14.058) = 113.742, So finally CP = 100, SP = 113.742, => gain = 13.742%.
Q: A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in ? 1719 05b5cc6eee4d2b4197774eee6
5b5cc6eee4d2b4197774eee6- 13 hrsfalse
- 26 hrstrue
- 37 hrsfalse
- 45 hrsfalse
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Answer : 2. "6 hrs"
Explanation :
Answer: B) 6 hrs Explanation: Suppose A, B and C take x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work.
Q: Priya can do a work in 16 days. In how many days will the work be completed by Sai, if the efficiency of Sai is 60% more than that of Priya ? 1718 05b5cc6c7e4d2b4197774deaf
5b5cc6c7e4d2b4197774deaf- 18 daysfalse
- 212 daysfalse
- 314 daysfalse
- 410 daystrue
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Answer : 4. "10 days"
Explanation :
Answer: D) 10 days Explanation: Ratio of efficiencies of Priya and Sai is Sai : Priya = 160 : 100 = 8 : 5 Given Priya completes the work in 16 days Let number of days Sai completes the work be 'd' => 5×16 = 8×d d = 10 days. Therefore, number of days Sai completes the work is 10 days.
Q: The ratio between present ages of Renuka and Sony is 5 : 4 . 4 years ago, Sony's age was 24 years. What will be Renuka's age after 5 years ? 1716 05b5cc6b5e4d2b4197774d539
5b5cc6b5e4d2b4197774d539- 125false
- 230false
- 335false
- 440true
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Answer : 4. "40"
Explanation :
Answer: D) 40 Explanation: Present age of Sony = 24 + 4 = 28 years After 5 years Renuka's age = 7×5 + 5 = 40 years
Q: A girl read 2/5 part of a book in 1st day, 34% in second day and remaining page in next two days. In two days she read equal number of page. If she read 52 pages on last day, then find out how many pages did the book contain? 1716 05b5cc6b9e4d2b4197774d6a3
5b5cc6b9e4d2b4197774d6a3- 1400true
- 2376false
- 3382false
- 4356false
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Answer : 1. "400"
Explanation :
Answer: A) 400 Explanation: 1st day the girl read = 40% 2nd day she read = 34 % Remaining percentage of book = 100% - (40% +34%) = 26% But given last two days she read equal number of pages => Each day she read 26%/2 = 13% Last day she read 52 pages = 13% 13% = 52 1% = 4 => 100% = 400 Total pages in the book is 400.
Q: It was Tuesday on Jan 1, 2006. What was the day of the week Jan 1, 2010 ? 1712 05b5cc6d0e4d2b4197774e367
5b5cc6d0e4d2b4197774e367- 1Sundayfalse
- 2Fridaytrue
- 3Mondayfalse
- 4Tuesdayfalse
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Answer : 2. "Friday"
Explanation :
Answer: B) Friday Explanation: On 31st December, 2005 it was Monday. Number of odd days from the year 2006 to the year 2009 = (1 + 1 + 2 + 1) = 5 days. On 31st December 2009, it was Thursday. Thus, on 1st Jan, 2010 it is Friday.
Q: A 260 m long train running at the speed of 120 km/hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 sec. What is the length of the other train ? 1712 05b5cc6d6e4d2b4197774e651
5b5cc6d6e4d2b4197774e651- 1240 mtstrue
- 2270 mtsfalse
- 3260 mtsfalse
- 4250 mtsfalse
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Answer : 1. "240 mts"
Explanation :
Answer: A) 240 mts Explanation: Relative speed = 120 + 80 = 200 km/hr.= 200 x 5/18 = 500/9 m/sec. Let the length of the other train be L mts.Then, (L + 260)/9 = 500/9 => L = 240 mts.