Lakshya Education MCQs

Question:

The value of \(\frac{489.1375\times0.0483\times1.956}{0.0873\times92.581\times99.749}\) is closest to:

Options:
A.0.006
B.0.06
C.0.6
D.6
Answer: Option B

\(\frac{489.1375\times0.0483\times1.956}{0.0873\times92.581\times99.749} appx. \frac{489\times0.05\times2}{0.09\times93\times100}\)

= \(\frac{489}{9\times93\times10}\)

= \(\frac{163}{279\times\frac{1}{10}}\)

= \(\frac{0.58}{10}\)

=  0.58 appx. 0.06.

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More Questions on This Topic :

Question 1.

617 + 6.017 + 0.617 + 6.0017 = ?

Options:
  1.    6.2963
  2.    62.965
  3.    629.6357
  4.    None of these
Answer: Option C
 617.00
    6.017
    0.617
 +  6.0017
  --------
  629.6357
  --------- 
Question 2.

The rational number for recurring decimal 0.125125.... is:

Options:
  1.    \(\frac{63}{487}\)
  2.    \(\frac{119}{993}\)
  3.    \(\frac{125}{999} \)
  4.    None of these
Answer: Option C

0.125125... = 0.125 = \(\frac{125}{999} \)

Question 3.

Which of the following fractions is greater than \(\frac{3}{4}\) and less than \(\frac{5}{6}\) ?

Options:
  1.    \(\frac{1}{2}\)
  2.    \(\frac{ 2}{3}\)
  3.    \( \frac{4}{5}\)
  4.    \(\frac{9}{10}\)
Answer: Option C

\(\frac{3}{4}=0.75,\frac{5}{6}=0.883,\frac{1}{2}=0.5,\frac{2}{3}=0.66,\frac{4}{5}=0.8,\frac{8}{10}=0.9,\)

Clearly, 0.8 lies between 0.75 and 0.833.

So, \(\frac{4}{5}\) lies between \(\frac{3}{4}\)  and  \(\frac{5}{6}\) .

Question 4.

0.002 x 0.5 = ?

Options:
  1.    0.0001
  2.    0.001
  3.    0.01
  4.    0.1
Answer: Option B

2 x 5 = 10.

Sum of decimal places = 4

 Therefore,  0.002 x 0.5 = 0.001

Question 5.

34.95 + 240.016 + 23.98 = ?

Options:
  1.    298.0946
  2.    298.111
  3.    298.946
  4.    299.09
Answer: Option C
 34.95
  240.016
 + 23.98
 --------
  298.946
 -------- 
Question 6.

Which of the following is equal to 3.14 x 106 ?

Options:
  1.    314
  2.    3140
  3.    3140000
  4.    None of these
Answer: Option C

3.14 x 106 = 3.14 x 1000000 = 3140000.