Quantitative Aptitude Practice Question and Answer

Q: 4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it ? 1475 0

  • 1
    40 days
    Correct
    Wrong
  • 2
    36 days
    Correct
    Wrong
  • 3
    32 days
    Correct
    Wrong
  • 4
    34 days
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "40 days"
Explanation :

Answer: A) 40 days Explanation: Let 1 man's 1 day work = x and 1 woman's 1 day work = y.Then, 4x + 6y = 1/8 and 3x + 7y = 1/10Solving these two equations, we get:x = 11/400 and y = 1/40010 woman's 1 day work = (1/400 x 10) = 1/40. Hence, 10 women will complete the work in 40 days.

Q: In a mixture, the ratio of juice and water is 4 : 3. By adding 6 litre water the ratio of juice and water will be 8 : 7. What is the amount of juice in the original mixture ? 1475 0

  • 1
    38 lit
    Correct
    Wrong
  • 2
    96 lit
    Correct
    Wrong
  • 3
    48 lit
    Correct
    Wrong
  • 4
    52 lit
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "48 lit"
Explanation :

Answer: C) 48 lit Explanation: Let the amount of juice and water in original mixture '4x' litre and '3x' litre respectively. According to given data, 4x/3x+6 =8/7 28x=24x+48 28x–24x=48 4x = 48 x = 12 Amount of juice = 4x = 4×12 = 48 litre.

Q: The length of a rectangle is 10 cm more than the breadth. Find the diagonal length of rectangle if perimeter is 44 cm ? 1474 0

  • 1
    12.50 cm
    Correct
    Wrong
  • 2
    14.21 cm
    Correct
    Wrong
  • 3
    15.98 cm
    Correct
    Wrong
  • 4
    17.08 cm
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "17.08 cm"
Explanation :

Answer: D) 17.08 cm Explanation: Let the length of the rectangle = L cm   Then the breadth of the rectangle = (L - 10) cm   Perimeter of a rectangle = 2(L + B) cm   => 44 = 2(L + L - 10)   => 44 = 4L - 20   => 4L = 64   => L = 16 cm   => B = L - 10 = 6 cm   Diagonal = L2+B2 = 162+62 = 17.08 cm

Q: A salesman calculated his profit on the marked price and finds it to be 30%. He forgets the fact that he gave a discount of 20%. What is his actual profit percentage? 1472 0

  • 1
    260/11%
    Correct
    Wrong
  • 2
    18.4%
    Correct
    Wrong
  • 3
    22.5%
    Correct
    Wrong
  • 4
    100/7%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "100/7%"
Explanation :

Answer: D) 100/7% Explanation: When profit is calculated on Marked Price (M.P) then, C.P = M.P - P% Let M.P = 100  => C.P = 100 - 30 = 70  But S.P = Rs. 80 as he gave 20% discount,  Now, Actual Profit = 80-7070x100   = 100/7 %

Q: A boat whose speed in still water is 9 kmph, goes 12 km downstream and comes back in 3 hrs. Find the speed of the stream? 1471 0

  • 1
    1 kmph
    Correct
    Wrong
  • 2
    3 kmph
    Correct
    Wrong
  • 3
    5 kmph
    Correct
    Wrong
  • 4
    4 kmph
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "3 kmph"
Explanation :

Answer: B) 3 kmph Explanation: Let the speed of the stream = x kmph   From the given data,    129+x+129-x=3 hrs 3x2 = 27   => x = 3 kmph   Therefore, the speed of the stream = 3 kmph

Q: A man spend 20% of his monthly salary on his children's education and 50% of his salary on food and transport. After Paying the rent of Rs.1000, he is left with Rs.2000. What is his monthly salary? 1471 0

  • 1
    7000
    Correct
    Wrong
  • 2
    10000
    Correct
    Wrong
  • 3
    14000
    Correct
    Wrong
  • 4
    20000
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "10000"
Explanation :

Answer: B) 10000 Explanation: Let his monthly salary be 'P' 20% on children's education = 20P100 = P5 50% on food and transport = 50P100 = P2 1000 on rent => P - P5 - P2 - 1000 = 2000=> 3P = 30000=> P = 10000   Therefore, his monthly salary = Rs. 10,000

Q: 54, 60  LCM is 1468 0

  • 1
    600
    Correct
    Wrong
  • 2
    540
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    54
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "540"
Explanation :

Answer: B) 540 Explanation: Here the LCM of 54, 60 is   => 2 x 3 x 3 x 3 x 10 = 6 x 9 x 10 = 54 x 10 = 540.

Q: A certain amount earns simple interest of Rs. 2260 after 3 years. Had the interest been 1 % more how much more interest would it have earned ? 1468 0

  • 1
    Rs. 175
    Correct
    Wrong
  • 2
    Rs. 220.75
    Correct
    Wrong
  • 3
    Rs. 126
    Correct
    Wrong
  • 4
    Can't be determined
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Can't be determined"
Explanation :

Answer: D) Can't be determined Explanation: Here given Interest earned = Rs. 2260 Time = 3 years Rate of interest = ? Principal Amount = ? So, it can't be determined.

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully