Question

out of 40 students in a class, 12 like foot ball 10 like cricket remaining like tennis find the ratio of number of students liking foot ball to number of students liking tennis number of students liking cricket to total number of students​

Answer 1

Answer:

number of students liking tennis = 30+ [6+12] = 12

i) number\ of\ students\ liking\ \frac{football}{tennis\ }=\ \frac{6\div6}{12\div6}=\frac{1}{2}number of students liking  

tennis  

football

​  

=  

12÷6

6÷6

​  

=  

2

1

​  

 

[HCF of 6,12=6]

ii) \frac{number\ of\ students\ liking\ cricket}{numberof\ students\ liking\ tennis}=\ \frac{12}{30\ }=\frac{12\div6}{30\div6}=\frac{2}{5}=2:5  

numberof students liking tennis

number of students liking cricket

​  

=  

30  

12

​  

=  

30÷6

12÷6

​  

=  

5

2

​  

=2:5

[HCF of 12,30 = 6]

Step-by-step explanation:

Answer 2

Number of people who like tennis = 40-12+10 = 40-22 = 18 people. Ratio is 12:10:18 is the answer.
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