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. \(42 \ \% \ of \ \sqrt{784} \div 0.01 = ? + 285\)

    1. 891
    2. 842
    3. 856
    4. 833


Answer: (a) 891

Solution: $$ \frac{42 \times \sqrt{784}}{100} \div \frac{1}{100} = ? + 285 $$ $$ \frac{42 \times 28}{100} \times 100 = ? + 285 $$ $$ 42 \times 28 = ? + 285 $$ $$ ? = 891 $$

  1. \(4234 \div 18 \times 12 = ? \times 15\)

    1. 188
    2. 166
    3. 144
    4. 122


Answer: (a) 188

Solution: $$ \frac{4234}{18} \times 12 = ? \times 15 $$ $$ 235.22 \times 12 = ? \times 15 $$ $$ 235 \times 12 = ? \times 15 $$ $$ ? = \frac{2820}{15} $$ $$ ? \approx 188 $$

  1. \(\frac{260}{22} \div \frac{34}{312} \times \frac{432}{42} = ?\)

    1. 1236
    2. 1080
    3. 996
    4. 912


Answer: (b) 1080

Solution: $$ \frac{260}{22} \times \frac{312}{34} \times \frac{432}{42} = ? $$ $$ 11.81 \times 9.17 \times 10.28 = ? $$ $$ 12 \times 9 \times 10 = ? $$ $$ ? \approx 1080 $$

  1. \(3 \sqrt{?} = 3 \sqrt{5832} \div 3 \sqrt{216}\)

    1. 27
    2. 64
    3. 125
    4. 216


Answer: (a) 27

Solution: $$ 3 \sqrt{?} = 3 \sqrt{5832} \div 3 \sqrt{216} $$ $$ 3 \sqrt{?} = 3 \sqrt{18 \times 18 \times 18} \div 3 \sqrt{6 \times 6 \times 6} $$ $$ 3 \sqrt{?} = 18 \div 6 $$ $$ ? = (3)^3 $$ $$ ? = 27 $$

  1. \(184000 \div 160 \div 40 \div 10 = ?\)

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


Answer: (c) 3

Solution: $$ 184000 \div 160 \div 40 \div 10 = ? $$ $$ \frac{184000}{160 \times 40 \times 10} = ? $$ $$ ? = 2.875 \approx 3 $$

  1. \(3 \sqrt{125.02 + 63.84 + 27.11} = ?\)

    1. 4
    2. 5
    3. 6
    4. 7


Answer: (c) 6

Solution: $$ 3 \sqrt{125.02 + 63.84 + 27.11} = ? $$ $$ 3 \sqrt{125 + 64 + 27} = ? $$ $$ 3 \sqrt{216} = ? $$ $$ ? \approx 6 $$

  1. \(24.91 \ \% \ of \ 299.11 + 325 \div 5 = ?\)

    1. 110
    2. 120
    3. 130
    4. 140


Answer: (d) 140

Solution: $$ 25 \ \% \ of \ 300 + 325 \div 5 = ? $$ $$ \frac{25 \times 300}{100} + \frac{325}{5} = ? $$ $$ ? = 75 + 65 $$ $$ ? \approx 140 $$

  1. \((15.12 \times (3.89)^2 \times 4.21) \div 25 = ?\)

    1. 30
    2. 38
    3. 44
    4. 52


Answer: (b) 38

Solution: $$ (15 \times (4)^2 \times 4) \div 25 = ? $$ $$ (15 \times 16 \times 4) \div 25 = ? $$ $$ ? = \frac{960}{25} $$ $$ ? \approx 38 $$

  1. \(214.78 \times \sqrt{?} - 120.31 = (17.88)^2\)

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


Answer: (d) 4

Solution: $$ 215 \times \sqrt{?} - 120 = (18)^2 $$ $$ 215 \times \sqrt{?} = 324 + 120 $$ $$ \sqrt{?} = \frac{444}{215} $$ $$ ? = (2)^2 $$ $$ ? \approx 4 $$

  1. \(2241 \times 1249 \div 1221 - 899 = ?\)

    1. 1395
    2. 1265
    3. 1225
    4. 1080


Answer: (a) 1395

Solution: $$ \frac{2240 \times 1250}{1220} - 900 = ? $$ $$ 2295 - 900 = ? $$ $$ 1395 \approx ? $$