Quantitative Aptitude Practice Question and Answer

Q: Karan started a business investing Rs 29000. After five months, Satish joined with a capital of Rs 18000. If at the end of the year, they earn a profit of Rs. 16970, then what will be the share of Satish in the profit ? 4607 0

  • 1
    Rs. 5422
    Correct
    Wrong
  • 2
    Rs. 5489
    Correct
    Wrong
  • 3
    Rs. 4511
    Correct
    Wrong
  • 4
    Rs. 6145
    Correct
    Wrong
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Answer : 3. "Rs. 4511"
Explanation :

Answer: C) Rs. 4511 Explanation: Now as per question, Karan invested for 12 months and Satish invested for 7 months. So, Karan:Satish = (29000 x 12):(18000 x 7) = 348:126 = 58:21   Satish Ratio in profit will be= 16970×2179 = Rs. 4511

Q: The largest measuring cylinder that can accurately fill 3 tanks of capacity 98, 182 and 266 litres each, is of capacity ? 4595 0

  • 1
    7 lts
    Correct
    Wrong
  • 2
    14 lts
    Correct
    Wrong
  • 3
    98 lts
    Correct
    Wrong
  • 4
    42 lts
    Correct
    Wrong
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Answer : 2. "14 lts"
Explanation :

Answer: B) 14 lts Explanation: To know the the measuring cylinder that can fill all the given capacities , they must be divisible by the required number. 98,182,266 all are divisible by 14 So  14 litres  is the largest cylinder that can fill all the given cylinders.                                        (or) The other method is take HCF of all given capacities i.e 98, 182 and 266.

Q: Two trains namely X & Y leave station 'A' at 6.30am and 7.40am and travel at 30km/hr and 40 km/hr respectively. How many kms from 'A' will the trains meet ? 4567 0

  • 1
    140 kms
    Correct
    Wrong
  • 2
    120 kms
    Correct
    Wrong
  • 3
    96 kms
    Correct
    Wrong
  • 4
    142 kms
    Correct
    Wrong
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Answer : 1. "140 kms"
Explanation :

Answer: A) 140 kms Explanation: It is given train X leave station A at 6:30 am, here it is asked to calculate the distance from A when the trains meet, theDistance traveled by train left at 6:30 am upto 7:40 am i.e. in 1 hr. 10 min. or 7/6 hours = 30 x 7/6 = 35 kmSo train leaving at 7:40 am will meet first train after covering a distance of 35 km. with relative speed of 40-30=10 km/hr.Hence time taken = 35/10 = 3.5 hours or 3 hours 30 minutesSo distance from A = Distance traveled by 2nd train in 3 hr. 30 min = 40 x 3.5 = 140 km.

Q: Find out the wrong number in the following series: 5, 15, 30, 80, 180, 540, 1080 4528 0

  • 1
    540
    Correct
    Wrong
  • 2
    180
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    80
    Correct
    Wrong
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Answer : 4. "80"
Explanation :

Answer: D) 80 Explanation: There should be 90 instead of 80so we can have a series5, 5x3, 15x2, 30x3, 90x2, 180x3, 540x2 and 1080x3 and so on...

Q: Find the Odd One Out of the following Number Series? 3, 14, 36, 67, 113, 168 4517 0

  • 1
    14
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    67
    Correct
    Wrong
  • 4
    113
    Correct
    Wrong
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Answer : 3. "67"
Explanation :

Answer: C) 67 Explanation: Here the given number series is 3, 14, 36, 67, 113, 168 It follows a pattern that 3 3 + 1 x 11 = 3 + 11 = 14 14 + 2 x 11 = 14 + 22 = 36 36 + 3 x 11 = 36 + 33 = 69 69 + 4 x 11 = 69 + 44 = 113 113 + 5 x 11 = 113 + 55 = 168   Hence, the wrong number is 67.

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Answer : 2. "6 mile/hr"
Explanation :

Answer: B) 6 mile/hr Explanation: Let the speed of river and boat be 'r' m/min and 'b' m/min.so relative speed in upstream (b-r)m/min and in downstream (b+r)m/min.Now in upstream distnce covered in 5 min is 5(b-r)milesso total distnce covered => 1 + 5(b-r)miles in upstreamIn downstream distance covered in 5min is 5(b+r)miles Now 1 + 5(b-r) = 5(b+r)1+5b-5r = 5b+5r1 = 10rr = 1/10 mile/min => 6 mile/hr.

Q: When I was married 10 years ago my wife is the 6th member of the family. Today my father died and a baby born to me.The average age of my family during my marriage is same as today. What is the age of Father when he died ? 4440 0

  • 1
    50 yrs
    Correct
    Wrong
  • 2
    60 yrs
    Correct
    Wrong
  • 3
    70 yrs
    Correct
    Wrong
  • 4
    65 yrs
    Correct
    Wrong
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Answer : 2. "60 yrs"
Explanation :

Answer: B) 60 yrs Explanation: Let the Father be x years when he died Average Age 10 years ago be A Total Age 10 years ago = 6*A Total Age after 10 years(Just before father's Death) = 6A + 6*10 = 6A + 60 Father Died and Baby was born => the Total number of people in the family is Same (6) Baby born today so age of baby = 0 (6A +60 - x)/6 = 6A/6 => A + 10 -(x/6) = A => x/6 = 10 => x = 60 Therefore we can conclude that the father was 60 years old when he died.

Q: Find the next number in the series 141,137,146,130,155,119,... 4439 0

  • 1
    147
    Correct
    Wrong
  • 2
    168
    Correct
    Wrong
  • 3
    162
    Correct
    Wrong
  • 4
    182
    Correct
    Wrong
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Answer : 2. "168"
Explanation :

Answer: B) 168 Explanation: The pattern is -4, +9,-16, +25, -36 The next number=119+49=168

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