Quantitative Aptitude Practice Question and Answer
8Q: Two pipes A and B can separately fill a cistern in 10 and 15 minutes respectively. A person opens both the pipes together when the cistern should have been was full he finds the waste pipe open. He then closes the waste pipe and in another 3 minutes the cistern was full. In what time can the waste pipe empty the cistern when fill ? 36455 15b5cc6e5e4d2b4197774ecf7
5b5cc6e5e4d2b4197774ecf7- 18.21 minfalse
- 28 minfalse
- 38.57 mintrue
- 48.49 minfalse
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Answer : 3. "8.57 min"
Explanation :
Answer: C) 8.57 min Explanation: 1/10 + 1/15 = 1/6 x 3 = 1/2 1 - 1/2 = 1/2 1/10 + 1/15 - 1/x = 1/2 x = 8.57 min
Q: From a tank of petrol, which contains 200 litres of petrol, the seller replaces each time with kerosene when he sells 40 litres of petrol(or its mixture). Everytime he sells out only 40 litres of petrol(pure or impure). After replacing the petrol with kerosen 4th time, the total amount of kerosene in the mixture is 27249 25b5cc7d7e4d2b4197775151a
5b5cc7d7e4d2b4197775151a- 181.92Lfalse
- 296Lfalse
- 3118.08Ltrue
- 4None of thesefalse
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Answer : 3. "118.08L"
Explanation :
Answer: C) 118.08L Explanation: The amount of petrol left after 4 operations = 200 × 1-402004 = 200 × 454 = 200 × 256625 = 81.92 litres Hence the amount of kerosene = 200 - 81.92 = 118. 08 litres
Q: Find the next number in the number series? 6, 6, 9, 18, 45, ? 21376 05b5cc64ae4d2b4197774bc20
5b5cc64ae4d2b4197774bc20- 187false
- 299.75false
- 3115.5false
- 4135true
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Answer : 4. "135"
Explanation :
Answer: D) 135 Explanation: The given number series is 6, 6, 9, 18, 45, ? Here the series follows a pattern that, 6 6 x 1 = 6 6 x 1.5 = 9 9 x 2 = 18 18 x 2.5 = 45 45 x 3 = 135 Hence, the next number in the given number series is 135.
Q: Ian has 14 boxes of paper and divides them evenly between 4 coworkers. How many whole boxes did each coworker get? 20721 05b5cc615e4d2b4197774b6f6
5b5cc615e4d2b4197774b6f6- 12false
- 22.5false
- 33true
- 43.5false
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Answer : 3. "3"
Explanation :
Answer: C) 3 Explanation: Given number of boxes = 14 Number of workers = 4 Now, number of whole boxes per worker = 14/4 = 3.5 Hence, number of whole boxes per each coworker = 3
Q: डिजाइन, कस्टुमर रिलेशन, और एच.आर डिपारटमेंट में कुल कितने पुरूष है?
18525 35d4abda611160f205237578e
5d4abda611160f205237578e- 190false
- 270false
- 380true
- 460false
- 5इनमें से कोई नहींfalse
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Answer : 3. "80"
Q: In 16 minutes, the minute hand gains over the hour hand by - 15265 05b5cc6f1e4d2b4197774ef4a
5b5cc6f1e4d2b4197774ef4a- 116 degfalse
- 280 degfalse
- 388 degtrue
- 494 degfalse
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Answer : 3. "88 deg"
Explanation :
Answer: C) 88 deg Explanation: In one hour, the minute hand gains 330° over the hour hand. i.e., 60 minute, the minute hand gains 330° over the hour hand. ∴ In 16 minutes, the minute hand gain over the hour hand by
Q: From a container of wine, a thief has stolen 15 litres of wine and replaced it with same quantity of water. He again repeated the same process. Thus, in three attempts the ratio of wine and water became 343 : 169. The initial amount of wine in the container was: 13302 15b5cc7d7e4d2b41977751510
5b5cc7d7e4d2b41977751510- 175 litresfalse
- 2100 litresfalse
- 3150 litresfalse
- 4120 litrestrue
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Answer : 4. "120 litres"
Explanation :
Answer: D) 120 litres Explanation: wine(left)wine(added) = 343169 It means wine(left)wine(initial amount) = 343512 (since 343 + 169 = 512) Thus, 343x = 512x1 - 15k3 343512 = 783 = 1 - 15k3 1-15k=78=1-18 Thus the initial amount of wine was 120 liters.
Q: A man is riding a bike with front and back wheel circumference of 40 inches and 70 inches respectively. If the man rides the bike on a straight road without slippage, how many inches will the man have travelled when the front wheel has made 15 revolutions more than the back wheel? 13121 15b5cc77fe4d2b41977750183
5b5cc77fe4d2b41977750183- 11100false
- 21300false
- 31400true
- 41200false
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Answer : 3. "1400"
Explanation :
Answer: C) 1400 Explanation: Given the ratio of the circumference of front wheel is 40 inches and back wheel is 70 inches Distance covered = Circumference of the wheel × No. of Revolutions made by the wheel If n is the number of revolutions made by back wheel, the number of revolutions made by front wheel is n+15 Distance covered by both the wheels is the same 40*(n+3)=70n n=20 Front wheel : Back Wheel Circumference 40 : 70 Revolutions 35 : 20 Distance covered : 40×35 = 70×20 = 1400 inches.