Simplification Aptitude Questions and Answers:


Overview:


Questions and Answers Type:MCQ (Multiple Choice Questions).
Main Topic:Quantitative Aptitude.
Quantitative Aptitude Sub-topic:Simplification Aptitude Questions and Answers.
Number of Questions:10 Questions with Solutions.

Directions: What Approximate value will come in place of question mark \(?\) in the following questions?


  1. \(1200.12 \times \sqrt{?}\) + \(24.84 \times \sqrt{80}\) = 2500

    1. 1
    2. 2
    3. 3
    4. 4


Answer: (d) 4

Solution: $$ 1200 \times \sqrt{?} + 25 \times 9 = 2500 $$ $$ 1200 \times \sqrt{?} + 225 = 2500 $$ $$ 1200 \times \sqrt{?} = 2500 - 225 $$ $$ 1200 \times \sqrt{?} = 2275 $$ $$ \sqrt{?} = \frac{2275}{1200} $$ $$ \sqrt{?} = 1.89 $$ $$ \sqrt{?} = 2 $$ $$ ? = (2)^2 $$ $$ ? \approx 4 $$

  1. \((15.02)^2 \div ? \times 16.78 \times 4.92\) = 450.01

    1. 42
    2. 45
    3. 48
    4. 51


Answer: (a) 42

Solution: $$ (15)^2 \div ? \times 17 \times 5 = 450 $$ $$ \frac{15 \times 15 \times 17 \times 5}{450} $$ $$ ? = 42.5 \approx 42 $$

  1. \((1175.05 + 524.88) \div 14.75 = ?\)

    1. 105
    2. 113
    3. 120
    4. 128


Answer: (b) 113

Solution: $$ (1175 + 525) \div 15 = ? $$ $$ 1700 \div 15 = ? $$ $$ ? = 113.34 $$ $$ ? \approx 113 $$

  1. \(2251 \div 24.78 \div \sqrt{170} \times 2.75 = ?\)

    1. 15
    2. 21
    3. 27
    4. 36


Answer: (b) 21

Solution: $$ 2250 \div 25 \div \sqrt{170} \times 3 = ? $$ $$ \frac{2250}{25 \times 13} \times 3 = ? $$ $$ ? \approx 21 $$

  1. \((225 \ \% \ of \ 280) \div 125 = ?\)

    1. 9
    2. 7
    3. 5
    4. 3


Answer: (c) 5

Solution: $$ \left(\frac{225 \times 280}{100}\right) \div 125 = ? $$ $$ 630 \div 125 = ? $$ $$ ? \approx 5 $$

  1. \((17.5 \ \% \ of \ 1999)^{\frac{1}{3}}\) + \((24.02 \ \% \ of \ 499)^{\frac{1}{2}}\) = ?

    1. 12
    2. 15
    3. 18
    4. 21


Answer: (c) 18

Solution: $$ \left(\frac{17.5 \times 2000}{100}\right)^{\frac{1}{3}} + \left(\frac{24 \times 500}{100}\right)^{\frac{1}{2}} = ? $$ $$ (350)^{\frac{1}{3}} + (120)^{\frac{1}{2}} = ? $$ $$ 7 + 11 = ? $$ $$ 18 \approx ? $$

  1. \(\left[(4.85)^2 - (6.79)^3 + (9.02)^3\right]^2\) = ?

    1. 168,921
    2. 152,223
    3. 142,220
    4. 136,456


Answer: (a) 168,921

Solution: $$ \left[(5)^2 - (7)^3 + (9)^3\right]^2 = ? $$ $$ \left[25 - 343 + 729\right]^2 = ? $$ $$ ? = [411]^2 $$ $$ ? \approx 168,921 $$

  1. \(\frac{520}{18} \times \frac{445}{26} \div \frac{34}{345}\) = ?

    1. 4130
    2. 4230
    3. 4530
    4. 4930


Answer: (d) 4930

Solution: $$ \frac{520}{18} \times \frac{445}{26} \times \frac{345}{34} = ? $$ $$ 28.89 \times 17.11 \times 10.14 = ? $$ $$ 29 \times 17 \times 10 = ? $$ $$ ? \approx 4930 $$

  1. 999.93 + 999.75 \(\div\) 19.94 \(\times\) 29.96 = ?

    1. 1500
    2. 2500
    3. 3500
    4. 4500


Answer: (b) 2500

Solution: $$ 1000 + 1000 \div 20 \times 30 = ? $$ $$ 1000 + \frac{1000}{20} \times 30 = ? $$ $$ 1000 + 1500 = ? $$ $$ 2500 \approx ? $$

  1. \(889 \div (4.9 \times 3) + 199.98 = ?\)

    1. 260
    2. 230
    3. 220
    4. 212


Answer: (a) 260

Solution: $$ 890 \div (5 \times 3) + 200 = ? $$ $$ 890 \div 15 + 200 = ? $$ $$ 59.33 + 200 = ? $$ $$ 260 \approx ? $$