The average height of six pupils is 120 cm. If the average height of five pupils is 134 cm, find the height of the sixth pupil.
|
6 pupils |
5 pupils |
Number |
6 |
5 |
Value |
120 |
134 |
Total value |
720 |
670 |
Total height of the 6 pupils
= 6 x 120
= 720 cm
Total height of the 5 pupils
= 5 x 134
= 670 cm
Height of the sixth pupil
= 720 - 670
= 50 cm
Answer(s): 50 cm