Answer:
none, 150 and 155
Explanation:
Mode from a set of values is the value which gets repeated the most.
Let us see the first part
140,145,150,155,160,165,170
In above set of values , no entry is being repeated. Hence there is no mode to above set of values.
Let us see the another set of values
145 , 150 , 150
in the above set, 150 gets repeated twice , hence the mode to the above set is 150
Let is see the third set of values
155,155,152
In the above set of entries , 155 get getting repeated , hence the mode will be 155.