The average height of six pupils is 126 cm. If the average height of five pupils is 128 cm, find the height of the sixth pupil.
|
6 pupils |
5 pupils |
Number |
6 |
5 |
Value |
126 |
128 |
Total value |
756 |
640 |
Total height of the 6 pupils
= 6 x 126
= 756 cm
Total height of the 5 pupils
= 5 x 128
= 640 cm
Height of the sixth pupil
= 756 - 640
= 116 cm
Answer(s): 116 cm