In a levelling work, seven readings were taken with a level as - 1.42, 1.57, 0.765, 1.11, 1.95, 2.9, and 1.825 m. If the instrument was shifted after the third and fifth readings, the readings recorded under the fore sight column will be:
1
0.765, 1.95, 1.825
2
1.42, 1.11, 2.9
3
1.42, 1.95, 2.9
4
1.42, 0.765, 1.95