Question

9. The combined length of 3 pieces of a board is 60 inches The lengths of the pieces are in the ratio 3:5:7: What is the length, in inches, of the longest piece C. 15 D. 20 F. 28

Answer 1

First add the ratios

3 + 5 + 7 = 15

First length

`=(3)/(15)*60`
`=\text{ 12}`

Longest length

`=(7)/(15)*60`
`=28`

The longest length is 28 inches