Question

The value of m, if 3,18,m,42 are in proportion

Answer 1

If its a proportion then

`\\ \sf\longmapsto 42-m=m-18`

`\\ \sf\longmapsto 42+18=m+m`

`\\ \sf\longmapsto 2m=60`

`\\ \sf\longmapsto m=(60)/(2)`

`\\ \sf\longmapsto m=30`