[PPSC Naib Tehsildar 2022]
Directions (Questions no. 21 to 25) : Based on the following information, answer the given questions. In a one-day workshop, the following five researchers are invited : G, H, J, K and L. Each of the researchers will deliver a lecture of one hour. The five lectures need to be scheduled in five consecutive hours. The schedule for the lectures is also constrained by the following conditions : H cannot deliver a lecture in any of the first three hours. L must take the lecture in any of the hours before the lecture of H. J must take the lecture in any of the hours before the lecture of G. G must take the lecture in any of the hours before the lecture of K.
21. Which of the following can be the order from first to fifth, in which five researchers deliver their lectures ?
G, K, L, J, H
J, G, K, H, L
J, G, K, L, H
J, K, G, L, H
22. If K delivers the lecture in the fourth hour, then which of the following must be true ?
G delivers the lecture in the third hour
H delivers the lecture in the fifth hour
J delivers the lecture in the first hour
L delivers the lecture in the third hour
23. If J does not deliver the lecture in the first hour, then which of the following must be true ?
G does not deliver the lecture in the third hour
H does not deliver the lecture in the fourth hour
J delivers the lecture in the second hour
K does not deliver the lecture in the fifth hour
4. If H does not deliver the fifth lecture, then which of the following must be true ?
G delivers the second lecture
J delivers the first lecture
L delivers the fifth lecture
K delivers the fifth lecture
25. If G delivers the third lecture, then which of the following is true ?
L is only one of the five researchers who can take the first lecture
J is only one of the five researchers who can take the second lecture
Any one of exactly three of the five researchers can take the second lecture
Either one of exactly two of the five researchers can take the fifth lecture