Question 703834
Yes it would!
Because in 10 years that will be added to both their ages! so now continue...
40+s)+s+20=90
60+2s=90 
so
2s=30
s=15 and so j=55
well done for sorting it out yourself, sorry for the delay in replying it's only 0720 here in UK and I've only just got out of bed!