Answer:
3
Step-by-step explanation:
Given set - [ 5, 6, 10, 7, 3, 2.5 ]
Index - 0, 1 , 2, 3, 4, 5
∴ we get
Index of element 7 is 3.
Reason -
The method index( ) returns the lowest index in the list where the element searched for appears.
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