exam Maths Puzzle Numerical Ability

Are lines L1 through (-2,1) and (0,3) and L2 through points (3,2) and (5,0) perpendicular?

Read Solution (Total 0)

exam Other Question

How do you solve and graph 3x-6y<12 A, B and C can finish a job in 6 days. If B and C work together, the job will take 9 days; if A and C work together it will take 8 days. In how many days can each man working alone do the job?