Ratios and Proportions
1)The simplest form of the ratio “Rs 2 to 150 paise“ is ________
  

2)In a class room there are 40 boys and 30 girls. The ratio of boys to the total number of students is __________________.
  

3)If 3 : 2 : : 4 : x then x is
  

4)If 2,x and 8 are in continued proportion then x is
  

5)The cost of 5 books is Rs 90 then the cost of two books is _______.
  

6)A car takes to travels 200 miles in 4 hours. How long the car travels in 8 hours?
  

7)The mean proportional to 4and 9.
  


  


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