The following consecutive readings  were taken with a level equipment and a 4  metre levelling staff on a continuously  slopping ground: 0.755, 1.545, 2.335, 3.545, 3.655, 0.525,  1.275, 2.650, 2.895, 3.565, 0.345, 1.525,  1.850, 2.675, 3.775. The first reading was  taken on a bench mark whose RL is 200.00  metres. Rule out a page of level book and  enter the above readings. Calculate the  reduced levels of the stations by the line of  collimation method and provide arithmetic  check on the levels.