book Maths Puzzle Numerical Ability

Would someone please help me figure this out?
A boat traveled 36 miles downstream with the current, in 1.5 hours. The return trip upstream, against the current covered the same di

Read Solution (Total 0)

book Other Question
if you were to use Gauss-Jordan elimination on the following linear system, what would the augmented matrix be?
3w-x=2y+z-4
9x-y+z=10
4w+3y-z=7
12x+17=2y-z+6 i'm not sure if this is the right category i im learning primeter and i am not sure what im doing here's an example of 1 of my problems i just need to no how it gets worked out the