55) What is rise or fall, if back sight reading taken on B.M is 2.045m and inter sight on point =2.68m?

56) What is rise or fall if inter sight on point 4 is 2.975m and fore sight on point 5 is =2.860m?

57) What is reduced level, if height of line of collimation is 98.717m and inter sight is 1.238m?

58) What is the difference in level if back sight reading 1.430m and inter sight reading 2.015m?

59) What is the height of Tee beam above the floor level if height of collimation of level on the floor 102.385m, inverted staff reading of the bottom of Tee beam - 3.890m and R.L of floor level 100.595m?