Question 859002
2/j+2/a+2.5/a=1
1/j+1/a=1/24/7
1/j+1/a=7/24
2/j+2/a+2.5/a=1
now we have

2/j+4.5/a=1,
1/j+1/a=7/24

a = 6,   j = 8