The average height of a group of 5 boys is 104 cm. When Eric, Bryan and Valen left the group, the average height decreased by 8 cm. What is Eric, Bryan and Valen's total height?
| |
5 boys |
2 boys |
| Number |
5 |
2 |
| Value |
104 |
96 |
| Total value |
520 |
192 |
Total number of boys after 3 boys left the group
= 5 - 3
= 2
New average height after 3 boys left the group
= 104 - 8
= 96 cm
Total height of 5 boys
= 5 x 104
= 520 cm
Total height of 2 boys
= 2 x 96
= 192 cm
Total height of Eric, Bryan and Valen
= 520 - 192
= 328 cm
Answer(s): 328 cm
