Math, asked by Vanessa18, 1 year ago

Answer the following
Formula for unitary method, direct variation and percentage.

Answers

Answered by kvnmurty
2
Unitary method: 

   If   n men complete work in d days, m men will do that work in how many days?
        ans =  n d / m
  
  if  a bus takes h  hours to travel  d distance, then how much time it takes to travel  distance of x ?
               ans = x h / d

Direct variation:

   if m men can do x amount of work, then  n men can do how much work?
              ans  =   x n / m

            like:   x1 / x2  =  w1/ w2
 
   if a car travels x km in m hours,  how much it will travel in  n hours ?
                     ans  =  n * x / m

Percentage :
      if  there are  x boys, and y girls in a class, the percentage of boys is 
                        x / (x+y)  * 100


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