The average height of four students is 130 cm. If the average height of three students is 123 cm, find the height of the fourth student.
|
4 students |
3 students |
Number |
4 |
3 |
Value |
130 |
123 |
Total value |
520 |
369 |
Total height of the 4 students
= 4 x 130
= 520 cm
Total height of the 3 students
= 3 x 123
= 369 cm
Height of the fourth student
= 520 - 369
= 151 cm
Answer(s): 151 cm