Quantitative Aptitude Practice Question and Answer

Q: What will be added to the unit digits of the number 86236 so that number will be divisible by 9  ? 2030 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 2. "2"
Explanation :

Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

Q: Simplify the fraction? 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17) 2030 0

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    -4 (1/17)
    Correct
    Wrong
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    5 (2/17)
    Correct
    Wrong
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    -2 (1/17)
    Correct
    Wrong
  • 4
    3 (3/17)
    Correct
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Answer : 1. "-4 (1/17)"
Explanation :

Answer: A) -4 (1/17) Explanation: Given fraction is 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17)  It can be written as  (5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? +  3 (1/17)  -1 + 0 - 3 (1/17) = ? => ? = -4 (1/17)

Q: It costs Rs. p each to send the first thousand messsages and Rs. q to send each subsequent one . If r is greater than 1,000, how many Rupees will it cost to send r messages ? 2029 0

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    1000 (r - p) + pq
    Correct
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    1000 p + qr
    Correct
    Wrong
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    1000 (r - q) + pr
    Correct
    Wrong
  • 4
    1000(p - q) + qr
    Correct
    Wrong
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Answer : 4. "1000(p - q) + qr"
Explanation :

Answer: D) 1000(p - q) + qr Explanation: We need to find the total cost to send r messsages, r > 1000. The first 1000 messsages will cost Rs.p each (Or)  The total cost of first 1000 messsages = Rs.1000p The remaining (r - 1000) messsages will cost Rs.q each (Or) The cost of the (r - 1000) = Rs.(r - 1000)y   Therefore, total cost = 1000p + rq - 1000q = 1000(p - q) + qr

Q: 10 25 45 54 60 75 85 Find the Odd Number? 2027 0

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    54
    Correct
    Wrong
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    10
    Correct
    Wrong
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    45
    Correct
    Wrong
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    85
    Correct
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Answer : 1. "54"
Explanation :

Answer: A) 54 Explanation: In given Series, all the numbers except 54 are multiples of 5.

Q: Find the Next Number in the given number series? 3, 10.5, 36.75, 128.625, ? 2025 0

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    450.187
    Correct
    Wrong
  • 2
    442.151
    Correct
    Wrong
  • 3
    441.231
    Correct
    Wrong
  • 4
    456.852
    Correct
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Answer : 1. "450.187"
Explanation :

Answer: A) 450.187 Explanation: Pattern is 3 3 x 3.5 = 10.5 10.5 x 3.5 = 36.75 36.75 x 3.5 = 128.625 128.625 x 3.5 = 450.187

Q: A quantity of tea is sold at Rs. 5.75 per kilogram. The total gain by selling the tea at this rate is Rs. 60. Find the quantity of tea being sold if a profit of 15% is made on the deal ? 2022 0

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    72 kgs
    Correct
    Wrong
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    80 kgs
    Correct
    Wrong
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    76 kgs
    Correct
    Wrong
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    84 kgs
    Correct
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Answer : 2. "80 kgs"
Explanation :

Answer: B) 80 kgs Explanation: Say total cost price of tea is x.Then total profit at a rate of 15% is = (15x/100)According to question,15x/100 = 60so x = 400C.p of the tea is Rs. 400.so total selling price will be = (400+60) = Rs.460so the quantity of the tea will be = (460/5.75) = 80kg.

Q: A shopkeeper sold a mobile phone for Rs. 12000. Had he offered discount of 10% on the selling price, there would be a loss of 4%. What is the cost price of that Mobile phone? 2021 0

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    Rs. 12,500
    Correct
    Wrong
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    Rs. 11,250
    Correct
    Wrong
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    Rs. 12,750
    Correct
    Wrong
  • 4
    Rs. 11,680
    Correct
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Answer : 2. "Rs. 11,250"
Explanation :

Answer: B) Rs. 11,250 Explanation: Given that SP = Rs. 12000 - 10%  = Rs. 10,800 Loss% = 4 We know that, C.P = 100/(100 - Loss%) x 100 => 100/100-4 x 10800 => 1080000/96 C.P = Rs. 11,250

Q: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 2021 0

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    34 years
    Correct
    Wrong
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    26 years
    Correct
    Wrong
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    24 years
    Correct
    Wrong
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    36 years
    Correct
    Wrong
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Answer : 4. "36 years"
Explanation :

Answer: D) 36 years Explanation: Let present ages of Sushanth = w, Krish = x, Rishi = y and Rohit = z , thenw + x + y = 43 x 3 = 129 ---(i) andw + y + z = 49 x 3 = 147 ---(ii)Subtracting (i) from (ii), (w+y+z) - (w+x+y) = 147 - 129 , z - x = 18 ---(iii)Given Rohit's age=z=54, so from (iii), x = 54 - 18 = 36.Therefore, Krish age is 36 years.

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