Jane ---- x
Fred ---- 2x+3
x + 2x+3 < 36
3x < 33
x < 11
Looks like Jane is less than 11 years old.
testing:
let Jane be 10
then Fred is 23 , their sum is < 36
Fred and Jane are brother and sister. Fred is 3years older than twice jane's age. The sum of their ages is less than 36. Taking jane's age
To be x years form a inequation. What can you say about jane's age.
1 answer