Quantitative Aptitude Practice Question and Answer

Q: Given that on 9th August 2016 is Saturday. What was the day on 9th August 1616 ? 2502 0

  • 1
    Saturday
    Correct
    Wrong
  • 2
    Sunday
    Correct
    Wrong
  • 3
    Friday
    Correct
    Wrong
  • 4
    Monday
    Correct
    Wrong
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Answer : 1. "Saturday"
Explanation :

Answer: A) Saturday Explanation: We know that, After every 400 years, the same day occurs.Thus, if 9th August 2016 is Saturday, before 400 years i.e., on 9th August 1616 has to be Saturday.

Q: 5% people of a village in India died by dengue, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning ? 2494 0

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    4400
    Correct
    Wrong
  • 2
    3100
    Correct
    Wrong
  • 3
    2800
    Correct
    Wrong
  • 4
    5600
    Correct
    Wrong
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Answer : 1. "4400"
Explanation :

Answer: A) 4400 Explanation: Let 'P' be the original population at the beginning P x (95/100) x (85/100) = 3553 P = 4400.

Q: What is better, to have 70% discount or 40 and 30% discount consequently ? 2482 0

  • 1
    40% is better
    Correct
    Wrong
  • 2
    70% is better
    Correct
    Wrong
  • 3
    Both are same
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "70% is better"
Explanation :

Answer: B) 70% is better Explanation: Let Price be Rs.100 1st CASE: Then 100 x 70/100 = 70=> price after discount = 100-70 = Rs.30 2nd CASE: Then 100 x 40/100 = 40=> price after discount = 100-40 = Rs.60then60 x 30/100 = 18=> price after 2 consequent discount = 60-18 = Rs.42 =>from 1 and 2 cases, 70% discount is better.

Q: In what time will Rs. 3300 becomes Rs. 3399 at 6% per annum interest compounded half-yearly ? 2474 0

  • 1
    Quarter months
    Correct
    Wrong
  • 2
    Half year
    Correct
    Wrong
  • 3
    2 years
    Correct
    Wrong
  • 4
    1 year
    Correct
    Wrong
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Answer : 2. "Half year"
Explanation :

Answer: B) Half year Explanation: 3300 ----- 3% тЖС (1st time interval, 99) тЖТ 3399. Here, time interval is given as half-yearly i.e. 6 months.

Q: The calendar for the year 2018 will be the same for the year 2473 0

  • 1
    2023
    Correct
    Wrong
  • 2
    2027
    Correct
    Wrong
  • 3
    2029
    Correct
    Wrong
  • 4
    2022
    Correct
    Wrong
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Answer : 3. "2029"
Explanation :

Answer: C) 2029 Explanation: How to find the years which have the same Calendars : ┬а Leap year calendar repeats every 28 years. Here 28 is distributed as 6 + 11 + 11. ┬а Rules: a) If given year is at 1st position after Leap year then next repeated calendar year is Givenyear+6. b) If given year is at 2nd position after Leap year┬аthen next repeated calendar year is Givenyear+11. c) If given year is at 3rd position after Leap year┬аthen next repeated calendar year is Givenyear+11. ┬а Now, the given year is 2018 We know that 2016 is a Leap year. 2016┬а ┬а 2017┬а ┬а 2018┬а ┬а 2019┬а 2020 Lp Y┬а ┬а ┬а 1st┬а ┬а ┬а2nd┬а ┬а┬а ┬а3rd┬а ┬а ┬аLp Y ┬а Here 2018 is at 2 nd position after the Leap year. According to rule b) the calendar of 2018 is repeated for the year is 2018 + 11 = 2029.

Q: If┬аa2+b2┬а=┬аc2┬а, then┬а1logc+ab┬а+┬а1logc-ab┬а=┬а? 2455 1

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 2. "2"
Explanation :

Answer: B) 2 Explanation: Given┬аa2┬а+┬аb2┬а=┬аc2 ┬а Now┬а┬а1logc+ab┬а┬а+┬а1logc-ab┬а ┬а =┬аlogbc+a┬а+┬аlogbc-a ┬а =┬аlogbc2-a2 =┬а2logbb┬а=┬а2

Q: P alone can complete a piece of work in 6 days. Work done by Q alone in one day is equal to one-third of the work done by P alone in one day. In how many days can the work be completed if P and Q work together ┬а? 2454 0

  • 1
    5 (2/3)
    Correct
    Wrong
  • 2
    6 (3/4 )
    Correct
    Wrong
  • 3
    4 (1/2)
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
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Answer : 3. "4 (1/2)"
Explanation :

Answer: C) 4 (1/2) Explanation: Work done by P alone in one day = 1/6th of the total work done by Q alone in one day = 1/3(of that done by P in one day) = 1/3(1/6 of the total) = 1/18 of the total.┬а ┬а Work done by P and Q, working together in one day = 1/6 + 1/18 ┬а= 4/18 = 2/9┬а ┬а They would take 9/2 days = 4 (1/2) days to complete the work working together.

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