The average height of a group of 5 boys is 105 cm. When Zane, Ivan and Neave left the group, the average height decreased by 11 cm. What is Zane, Ivan and Neave's total height?
|
5 boys |
2 boys |
Number |
5 |
2 |
Value |
105 |
94 |
Total value |
525 |
188 |
Total number of boys after 3 boys left the group
= 5 - 3
= 2
New average height after 3 boys left the group
= 105 - 11
= 94 cm
Total height of 5 boys
= 5 x 105
= 525 cm
Total height of 2 boys
= 2 x 94
= 188 cm
Total height of Zane, Ivan and Neave
= 525 - 188
= 337 cm
Answer(s): 337 cm