Advertisements

Basic Math MCQ 5 (One number percent greater than percent of other number)

MCQ5: 40% of a number is more than 20% of 650 by 190. Find the number?

a) 600           b) 700           c) 800              d) 900

Solution:

Let the number is ‘x’

40% of ‘x’ ​\( =\frac{40}{100}\times x \)

Now

20 % 0f 650  ​\( =\frac{20}{100} \times 650 = 130 \)

Now by given condition 40% of ‘x’ is greater than 20% of 650 by 190 i-e we will have to add 190 in 20% of 650 to make it equal to 40% of ‘x’

Mathematically

40% of ‘x’ = 20% of 650 + 190

or

\[ \frac{40}{100}\times x=130+190 \]

\[ \frac{40}{100}\times x=320 \]

\[ x= \frac{320\times100}{40} \]

\[ x=800 \]

So number is 800 — the option c is correct

Digiprove sealCopyright secured by Digiprove © 2020

  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  

You may submit a MCQ or maths problem with solution tips here in the comment box below! If you could not solve anyone, you may submit a MCQ or maths problem without solution as well. We will try our level best to solve it for you!

Your email address will not be published.

You may use these <abbr title="HyperText Markup Language">HTML</abbr> tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

Insert math as
Block
Inline
Additional settings
Formula color
Text color
#333333
Type math using LaTeX
Preview
\({}\)
Nothing to preview
Insert