Quantitative Aptitude :: Decimal Fractions Problems And Answers


Decimal Fractions Formulaes

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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

22. 475.124 x 15.98 ÷ 8.001 + 33.33 = ?

A. 983.578 B. 659.121
C. 781.189 D. 656.112

23. (369.99)2 = ?

A. 1369 B. 1369 x 102
C. 1369 x 103 D. 1369 x 105

24. (36)2 ÷ 0.9 x 15.02 = ?

A. 21.6 B. 216
C. 21600 D. 2.16

25. 450.271 + 369.422 ÷ 0.03 - 108.612 x 2.001 = ?

A. 12980 B. 12532
C. 12610 D. 12430

26. If 0.12 ÷ x2 = 12, than x = ?

A. 0.001  B. 0.01
C. 0.1 D. 1

27. If x/y = 0.3, then (2x - y)/(2x + y) = ? 

A. 0.25 B. 0.5
C. 0.4 D. 0.45

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

29. (0.16)2 - (0.12)2 = ?

A. 0.0011  B. 0.011 
C. 11.2  D. 0.0112 

30. (0.29)2 - (0.01)2/0.3 = ?

A. 0.21 B. 0.24 
C. 0.28 D. 0.32 




Related Topics

Calender
Problems on volume
HCF & LCM
Permutations
Boats and Streams
Problems on Trains




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