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the graph below shows the number of visitors who visited science center in the period from July to December.

 Apr 24, 2022
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a)  1200   / 1900  =    12  /  19

 

b)  No. of children   =   (2/3) (1800)   = 1200

 

Number of boys  = 2x

Number of girls  = x

 

So

 

2x + x  =   1200

 

3x =  1200

 

x =  1200   / 3   =     400 girls

 

 

cool cool cool

 Apr 24, 2022

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