The average height of four pupils is 124 cm. If the average height of three pupils is 134 cm, find the height of the fourth pupil.
|
4 pupils |
3 pupils |
Number |
4 |
3 |
Value |
124 |
134 |
Total value |
496 |
402 |
Total height of the 4 pupils
= 4 x 124
= 496 cm
Total height of the 3 pupils
= 3 x 134
= 402 cm
Height of the fourth pupil
= 496 - 402
= 94 cm
Answer(s): 94 cm