The average height of five students is 126 cm. If the average height of four students is 138 cm, find the height of the fifth student.
|
5 students |
4 students |
Number |
5 |
4 |
Value |
126 |
138 |
Total value |
630 |
552 |
Total height of the 5 students
= 5 x 126
= 630 cm
Total height of the 4 students
= 4 x 138
= 552 cm
Height of the fifth student
= 630 - 552
= 78 cm
Answer(s): 78 cm