Question 1191235
the ratio of james's age and bob's age is 10:9.
let x = the multiplier
then
10x = j's age
and
9x = b's age
 The ratio of sarah's age and bob's age is 29:27.
let y = the multiplier
then
29y = s's age
and
27y = b's age
 how old is bob. (bob is between 40 and 70 years old
27y = 9x
3y = x
In order for Sarah's age to be reasonable, y has to equal 1 or 2
if y=1, x=3, Bob is 27, not between 40 and 70
if y=2, x=6, Bob is 54