The average height of six pupils is 129 cm. If the average height of five pupils is 125 cm, find the height of the sixth pupil.
|
6 pupils |
5 pupils |
Number |
6 |
5 |
Value |
129 |
125 |
Total value |
774 |
625 |
Total height of the 6 pupils
= 6 x 129
= 774 cm
Total height of the 5 pupils
= 5 x 125
= 625 cm
Height of the sixth pupil
= 774 - 625
= 149 cm
Answer(s): 149 cm