Answer:
4.5 times
Step-by-step explanation:
Given : The ratio of students packing a lunch to those buying lunch is 2:9
To Find : The number of students buying lunch is ______ times the number of students packing a lunch.
Solution :
let x denotes the no. of students packing a lunch
let y denotes the no. of students buying a lunch
Since the ratio is 2:9
⇒\(\frac{2}{9} = \frac{x}{y}\)
⇒\(2y = 9x\)
⇒\(y = \frac{9}{2} x\)
⇒\(y =4.5 x\)
Since y denotes the no. of students buying a lunch and x denotes the no. of students packing a lunch
Thus , The number of students buying lunch is 4.5 times the number of students packing a lunch.
