even if it meant \(|C-A|<15\), and \(A\geq{C}\), then there are more Adults than Children. It will meet the required ratio.
and when \(A<{C}\), as explained, minimum number of Adults will be when \(C-A=14\)
Su_bha
diff
tgsankar10
\(Adults+Children=a+c=24\)
Required ratio of Children to Adults \(= \frac{c}{a}=\frac{4}{1}=4\)
To meet insurance terms, the ratio should be \(\frac{c}{a}<4\)
is \(\frac{c}{a}<4?\)
Statement 1: The difference between the number of children and the number of adults is smaller than 15
\(c-a<15\).
For minimum number of adults, \(c-a=14\)
We have two equations, \(c-a=14\) & \(c+a=24\)
\(c=19, a=5\)
\(\frac{c}{a}=\frac{19}{5}=3.8\)
Sufficient
Statement 2: If one more adult arrives at the nursery and one child is picked up by their parents, the ratio of adults to children will be 1:3
\(\frac{a+1}{c-1}=\frac{1}{3}\)
\(3a+3=c-1\)
\(c-3a=4\)
\(c+a=24\)
Sufficient
Answer: D
if difference is given then wouldn't be it like |C-A| <15