A lift operator is not allowed to carry less than 7 and more that 10.passengers in the lift at one time. If there are 45 people waiting on the ground floor, what is the minimum number of trips that the lift must make in order to transport all the people?
A. 4.5
B. 3
C. 4
D. 5
E. 6
সঠিক উত্তরঃ
D.
5
Explanation:
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