Seven persons have 20,30,40,50,60,70 and 80 chocolates with them. If each of them is given 5 chocolates additionally, what will be the average number of chocolates with them?
- A50
- B55
- C45
- D60
Solution & Step-by-step Explanation
Initial chocolates distribution: 20,30,40,50,60,70,80.
The initial average of these numbers:
Initial Average=
7
20+30+40+50+60+70+80
=
7
350
=50
If a constant value is added to every quantity in a dataset, the mean (average) increases by that same constant value.
Since each person is given 5 chocolates additionally:
New Average=50+5=55
The initial average of these numbers:
Initial Average=
7
20+30+40+50+60+70+80
=
7
350
=50
If a constant value is added to every quantity in a dataset, the mean (average) increases by that same constant value.
Since each person is given 5 chocolates additionally:
New Average=50+5=55