71. On the Cartesian plane a point is a lattice point if both of its coordinates are integers. If there are 80 lattice points in the region (boundary included) enclosed by two axis and the line y xk =− + 2 . What is the value of k ? (A) 9 (B) 11 (C) 18 (D) 22

55. In an experiment, it is found that the probability that a released bee will land on a painted target is . It is also found that when a bee lands on the target, the probability that the bee will attempt to sting the target is . In this experiment, what is the probability that a released bee will land on the target and attempt to sting it? (A) (B) (C) (D)

71. On the Cartesian plane a point is a lattice point if both of its coordinates are integers. If there are 80 lattice points in the region (boundary included) enclosed by two axis and the line y xk =− + 2 . What is the value of k ?
(A) 9
(B) 11
(C) 18
(D) 22

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