Quantitative Aptitude Practice Question and Answer

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Answer : 4. "Rs. 1,00,000"
Explanation :

Answer: D) Rs. 1,00,000 Explanation: Deepa invested Rs.50,000 for 12 months, Rs.(50000 + 20000) for 12 months and Rs.(50000 + 20000 + 20000) for 12 months.i.e, she invested Rs.50,000 for 12 months, Rs.70000 for 12 months and Rs.90000 for 12 months.Sushma invested Rs. 70000 for 2 years; i.e, Rs.70000 for 24 monthsAnd, Avanthi invested Rs.70000 for 1 year; i.e, Rs. 70000 for 12 months. Their investing ratio:Deepa : Sushma : Avanthi = (50,000 x 12 + 70000 x 12 + 90000 x 12):(70000 x 24):(70000 x 12)= (25,20,000):(16,80,000):(8,40,000) = 252:168:84 = 3:2:1 Total profit for 3 years = Rs.3,00,000Therefore, Sushma's share = Rs.(3,00,000 x 2 /(3+2+1)) = Rs.(3,00,000 x 2/6) = Rs.1,00,000.

Q: Twelve percent of Kalyan's monthly salary is equal to the sixteen per cent of Nandu's monthly salary. Sarnesh's monthly salary is half that of Nandu's monthly salary. If sarnesh's annual salary is Rs. 1.08 lacs, What is Kalyan's monthly salary ? 1378 0

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    15,000
    Correct
    Wrong
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    36,000
    Correct
    Wrong
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    24,000
    Correct
    Wrong
  • 4
    12,500
    Correct
    Wrong
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Answer : 3. "24,000"
Explanation :

Answer: C) 24,000 Explanation: Let K = Kalyan's monthly salaryN = Nandu's monthly salaryS = Sarnesh's monthly salary.Then from given data, 12% of K = 16% of NS = N/2 => N = 2SK = 16/12 x N = 16/12 x 2S= 16/6 x 1.08/12 = 16/6 x 0.09 = 0.24 lacs = 24,000

Q: If 5th March, 2005 is Monday, what was the day of the week on 5th March, 2004 ? 1412 0

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    Sunday
    Correct
    Wrong
  • 2
    Monday
    Correct
    Wrong
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    Tuesday
    Correct
    Wrong
  • 4
    Wednesday
    Correct
    Wrong
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Answer : 1. "Sunday"
Explanation :

Answer: A) Sunday Explanation: The year 2004 is a leap year. So, it has 2 odd days. But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only. The day on 5th March, 2005 will be 1 day beyond the day on 5th March, 2004. Given that, 5th March, 2005 is Monday. 5th March, 2004 is Sunday (1 day before to 5th March, 2005).

Q: The average of a non-zero number and its square is 11 times the number. The number is ? 1488 0

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    22
    Correct
    Wrong
  • 2
    21
    Correct
    Wrong
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    11
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 1. "22"
Explanation :

Answer: A) 22 Explanation: Let the number be 'x'.       x+x22 = 11x x2= 22x => x = 22.

Q: The largest measuring cylinder that can accurately fill 3 tanks of capacity 98, 182 and 266 litres each, is of capacity ? 4398 0

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    7 lts
    Correct
    Wrong
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    14 lts
    Correct
    Wrong
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    98 lts
    Correct
    Wrong
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    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: In a scheme, a pack of three soaps with MRP Rs.45 is available for Rs.42. If it still gives a profit of 5% to the shopkeeper, then the cost price of the pack is ? 4424 0

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    38
    Correct
    Wrong
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    39
    Correct
    Wrong
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    40
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 3. "40"
Explanation :

Answer: C) 40 Explanation: Given M.P=45,S.P=42, Profit = 0.05 Let C.P=x , Then Profit = (42-x)/x = 0.05=> x = 40.

Q: One lady has 2 children, one of her child is boy, what is the probability of having both are boys ? 1297 0

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

Answer: A) 1/3 Explanation: In a family with 2 children there are four possibilities:1) the first child is a boy and the second child is a boy (bb)2) the first child is a boy and the second child is a girl (bg)3) the first child is a girl and the second child is a boy (gb)4) the first child is a girl and the second child is a girl (gg) But already given that one child is boy. So we have three possibilities of (bb)(bg)(gb).n(E)= both are boys=BB=1n(S)= 3Required probability P = n(E)/n(S) = 1/3.

Q: An air conditioner can coo the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. If both air conditioners are switched on at same instance then how long will it take to cool the room approximately ? 11478 0

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    18 minutes
    Correct
    Wrong
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    19 minutes
    Correct
    Wrong
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    22 minutes
    Correct
    Wrong
  • 4
    24 minutes
    Correct
    Wrong
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Answer : 3. "22 minutes"
Explanation :

Answer: C) 22 minutes Explanation: Let the two conditioners be A and B 'A' cools at 40min 'B' at 45min Together =(axb)/(a+b) = (45x40)/85 = 21.1764 = (approx) 22 min.

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