number of students in a college in 2005 was 510 of these 480 were boys ,in 2010 number of boys increased by 100% and that of girls is increased by 300% of that of 2005. In 2012 the total number of students in the college was 1200 the number of boys being the double the number of girls . tabulate the above information.
Answers
Step-by-step explanation:
In 2005
510
Boys =480
Girls =30
In 2010
Boys =100%of480+480=960
Girls =300%of30+30=90
In 2012
Boys : girls
2x : x
Total 3x=1200(given)
X=400
So boys =800
Girls =400
Answer:
In 2005,
Total number of students= 510
Total number of Boys =480
Total number of Girls =Total number of students - Total number of Boys
Total number of Girls = 30
In 2010,
Total number of Boys = 100% of 480+ 480
Total number of Boys =
Total number of Boys = 480 + 480
Total number of Boys= 960
Total number of Girls = 300% of 30 + 30
Total number of Girls =
Total number of Girls = 3*30 + 30
Total number of Girls= 90 + 30
Total number of Girls = 120
Total number of students = Total number of Boys + Total number of Girls
Total number of students = 960 + 120
Total number of students = 1,080
In 2012,
Total number of students = 1,200
The ratio of Total number of Boys to Total number of Girls = Boys: Girls
Ratio = 2x:x (Here, x is referred to as the number of girls)
Total of the ratio = 3x = 1200(given)
x = 400
Total number of Girls = x = 400
Total number of Boys = 2x = 2*400 = 800
Verification:
Total number of students = Total number of Boys + Total number of Girls
Total number of students = 800 + 400
Total number of students = 1,200
Hence, the answer is verified
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