In a group of 120 students, 68 had ridden a bus, 78 had ridden LRT, 33 had ridden a jeep, while 40 had ridden both the bus and LRT, 20 had ridden the bus and the jeep, 19 had ridden the jeep and LRT and 15 had ridden the bus, the LRT AND THE JEEP.
1.how many ridden the bus only?
2. How many ridden the LRT only?
3.how many ridden the jeep only?
4.how many did not ride on any of the tree modes of transportation!?
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Answer:
1. 108 bus
2.118 LRT
3.39 jeep
4.145