Question 1096610

Hi
mr watson is 7 times as old as his son. His son was 4 years old last year.how old will his son be when mr watson is 60 years old.

Thanks
<pre>Last year son was 4 so son is now 5 years-old
Mr. Watson's age: 7(5) = 35
Difference in ages: 30 (35 - 5)
When Mr, Watson is 60, difference will remain 30, so son will be: {{{highlight_green(matrix(1,4, 60 - 30, "=", 30, years-old))}}}