book Maths Puzzle Numerical Ability

solve /x/= 7
^absolute value
and...
solve /x/= -9

and...
solve and graph /x+5/<= 2

Read Solution (Total 0)

book Other Question

A and B are 30km apart. If they leave at the same time and travel in the same direction, A overtakes B in 60 hours. If they walk toward each toher, they meet in 5 hours. What ar Sorry LongJohn - it's embarrassing that I made a dumb typo in the original post, hopefully this is clearer.

I couldn't see a way to 'edit' the original post, so I've reposted.