Quantitative Aptitude Practice Question and Answer

Q: The ratio between the length and breadth of a rectangular field is 5 : 4 if the breadth is 20m less than the length, the perimeter of the field is : 1589 0

  • 1
    260m
    Correct
    Wrong
  • 2
    280m
    Correct
    Wrong
  • 3
    360m
    Correct
    Wrong
  • 4
    none of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

Answer: Explanation:

Q: Two trains running in opposite directions cross a pole placed on the platform in 47 seconds and 31 seconds respectively. If they cross each other in 33 seconds, what is the ratio of their speeds? 1584 0

  • 1
    1:7
    Correct
    Wrong
  • 2
    7:1
    Correct
    Wrong
  • 3
    2:3
    Correct
    Wrong
  • 4
    3:2
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "1:7"
Explanation :

Answer: A) 1:7 Explanation: Let the speed of the trains be x and y respectively length of train1 = 47xlength of train2 = 31yRelative speed= x + yTime taken to cross each other = 33 s=> 47x+31yx+y= 33=> (47x + 31 y) = 33(x + y)=> 14x = 2y=> x/y = 2/14 = 1/7 ┬а= 1:7

Q: A can do a work in 9 days, B can do a work in 7 days, C can do a work in 5 days. A works on the first day, B works on the second day and C on the third day respectively that is they work on alternate days. When will they finish the work ? 1583 0

  • 1
    [7 + (215/345)] days
    Correct
    Wrong
  • 2
    [6 + (11/215)] days
    Correct
    Wrong
  • 3
    [6 + (261/315)] days
    Correct
    Wrong
  • 4
    [5 + (112/351)] days
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "[6 + (261/315)] days"
Explanation :

Answer: C) [6 + (261/315)] days Explanation: After day 1, A finishes 1/9 of the work. After day 2, B finishes 1/7 more of the total work. (1/9) + (1/7) is finished. After day 3, C finishes 1/5 more of total work. Total finished is 143/315. So, after day 6, total work finished is 286/315. ┬а Now remaining work =┬а 29 /315 ┬а On day 7, A will work again┬а ┬а Work will be completed on day 7 when A is working. He must finish 29/315 of total remaining work. ┬а Since he takes 9 days to finish the total task, he will need 261/315 of the day.┬а ┬а Total days required is 6 + (261/315) days.

Q: The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number ┬а? 1581 0

  • 1
    270
    Correct
    Wrong
  • 2
    1270
    Correct
    Wrong
  • 3
    350
    Correct
    Wrong
  • 4
    720
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "270"
Explanation :

Answer: A) 270 Explanation: Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.

Q: The compound interest on Rs. 8000 for 3 year at 10% p.a.┬аis 1580 0

  • 1
    2648
    Correct
    Wrong
  • 2
    2145
    Correct
    Wrong
  • 3
    2587
    Correct
    Wrong
  • 4
    2784
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "2648"
Explanation :

Answer: A) 2648 Explanation: 8000 ├Ч 33.1% = 2648

Q: The length of a rectangle is 10 cm more than the breadth. Find the diagonal length of rectangle if perimeter is 44 cm ? 1577 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 ┬а Then the breadth of the rectangle = (L - 10) cm ┬а Perimeter of a rectangle = 2(L + B) cm ┬а => 44 = 2(L + L - 10) ┬а => 44 = 4L - 20 ┬а => 4L = 64 ┬а => L = 16 cm ┬а => B = L - 10 = 6 cm ┬а Diagonal =┬аL2+B2┬а=┬а162+62┬а= 17.08 cm

Q: You drive to the store at 20 kmph and return by the same route at 30 kmph. Discounting the time spent at the store, what was your average speed ? 1577 0

  • 1
    25 kmph
    Correct
    Wrong
  • 2
    24 kmph
    Correct
    Wrong
  • 3
    26 kmph
    Correct
    Wrong
  • 4
    22 kmph
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "24 kmph"
Explanation :

Answer: B) 24 kmph Explanation: Average speed=total distance/total timeLet distance to store be ┬аKthen, total time =(K/20)+(K/30)=K/12and, total time =(2K)so average speed= 2K / (K/12) = 24kmph.

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 ? 1572 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┬аand water in original mixture '4x' litre and '3x' litre respectively. According to given data, 4x/3x+6 =8/7 28x=24x+48 28xтАУ24x=48 4x = 48 x = 12 Amount of juice┬а= 4x = 4├Ч12 = 48 litre.

      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