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Quantitative Aptitude :: Decimal Fractions Problems And Answers


Decimal Fractions Formulaes

Quantitative Aptitude
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Directions

Type 2 To Find the Approximate Value of (?)
Directions (Q. Nos 16 to 25) What Approximate Value should come in place of question mark (?) in the following questions? (Note that you are not expected to calculate the exact value)

21. 16.001 x 11.999 x 99.989 x 0.9 = ?
A. 17280 B. 19140
C. 21360 D. 24590
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22. 475.124 x 15.98 ÷ 8.001 + 33.33 = ?
A. 983.578 B. 659.121
C. 781.189 D. 656.112
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23. (369.99)2 = ?
A. 1369 B. 1369 x 102
C. 1369 x 103 D. 1369 x 105
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24. (36)2 ÷ 0.9 x 15.02 = ?
A. 21.6 B. 216
C. 21600 D. 2.16
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25. 450.271 + 369.422 ÷ 0.03 - 108.612 x 2.001 = ?
A. 12980 B. 12532
C. 12610 D. 12430
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26. If 0.12 ÷ x2 = 12, than x = ?
A. 0.001  B. 0.01
C. 0.1 D. 1
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27. If x/y = 0.3, then (2x - y)/(2x + y) = ? 
A. 0.25 B. 0.5
C. 0.4 D. 0.45
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28. (4.5 x 3.7 + 4.5 x 6.3)/(1.5 x 8.4 - 1.5 x 7.4) = ?
A. 30 B. 30.05
C. 32 D. 34
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29. (0.16)2 - (0.12)2 = ?
A. 0.0011  B. 0.011 
C. 11.2  D. 0.0112 
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30. (0.29)2 - (0.01)2/0.3 = ?
A. 0.21 B. 0.24 
C. 0.28 D. 0.32 
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Related Topics

HCF & LCM
Ration and Proportion
Calender
Permutations
Simplication
Time and Work



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